Speedometer inaccurate (Unless BOTH my minivan and motorcycle are inaccurate. These tires are adequate, at best. was dead on at 40 MPH. Thank On the RX-7, the speedo reads ~10% fast. E-Bike. If it is in winter, the weather is cold in winter, the oil is semi-solidified, and it is normal for the rotational speed to be unstable at the beginning; 3. A car's speedometer should be accurate, but are they? What are the legal requirements around speedometers, and how can you check yours? Our experts have taken a look. Inaccurate Readings Speedometers may show incorrect speeds due to calibration issues or faulty sensors. , I’m going 50 mph but the CarPlay display is 25 mph). Here's how to fix them both. Electronic. To avoid being responsible for your speeding, manufacturers usually set the speedometer to be on the low side of any error, that is, if your speedometer is only accurate within 5%, the manufacturer prefers them to average 5% low rather than have half of I know that many speedometers are inaccurate from the factory (and up to 10% is often quoted), but this was a shock coming from an Audi with an electronic speedo that was at most 1-2% inaccurate, and then only at higher speeds. In most countries a speedometer may not under-read but is allowed to over-read. I have a 76 Scottsdale 4x4 and the speedometer was not functional when I bought it. I tested my speedometer against Google Maps Speedometer May Be Incorrect. Electrical I would not mess with the speedometer unless you know it is the problem specifically, and it bothers you enough to correct it. The faster I go the larger the gap. Company's Fabia had -5km up to around a 100km/h, but driving 150km/h it showed 180km/h on the clock. Any damage to this sensor can result in inaccurate speed readings or a complete failure of the speedometer. Laws mandate that your car’s speedometer If the speedometer reading is higher than the actual speed, the speedometer is fast. If it was 2-3 mph, it wouldn't be an issue, 10 mph is. M. ZBB Emperor. That has two problems. Therefore your actual speed is higher than your speedometer reads. Not sure if this is a common problem or an easy fix, but the forum won't let me do any searches with "speedometer" in the key words. Completely random. And it was dead on with my old Chevrolet Malibu. I wouldn't trust it to read accurately even in the middle of summer. So, I went back later with my Corvette and the speedo and the radar thing both said I was doing 65 mph. It's widely acknowledged that speedometers for most scooters and motorcycles are inaccurate. JudeT Discussion starter. Aside from your comment that the speedometer is "sometimes" correct this really sounds like you have the incorrect gear on your speedo cable. Jump to Latest 9. My speedometer reads 65mph but I'm going 61 Re: Speedo inaccurate « Reply #9 on: March 29, 2023, 06:52:25 am » A Speedo that reads fast works for me or maybe not…. When the speedo reads 50, I'm doing about 45. This thread will provide detailed instructions for those with a 1992-1998 Gm pickup truck, with either 2wd or 4wd who wish to recalibrate there VSSB(vehicle speed sensor inaccurate speedometer. Rotor Wrench Discussion starter. Also, if speed camera catches you and thay say like you drove 82km/h on 80km/h limit you cannot say your speedometer said 80 because it will at least say 85. [70 FR 48054, Aug. This indicates to me that Toyota deliberately makes the speedometer read fast, and if you correct the speedometer, then your odometer will read too few miles. it should not be possible to inadvertently speed because of an incorrect speedometer reading. It was easy to diagnose why it wasn’t working. It was still off by about 15% (Reads about 80 with a GPS It’s a 2016 LEAF and the speedo is the most inaccurate I’ve used, when my dashcam says 70mph the speedo says 80, when I hit the top speed of a whopping 89mph, the speedo reads 101mph! Reply reply Your car speedo overestimates because the legal limit is -0% +10% so the manufactures set it slightly high so if it Speedometer Inaccurate. I have ensured the tire pressure is Since I have had my 3, I've felt like the speedometer reads a little higher than actual speed when I'm in the 60 - 70 range or so. The average for the Piaggio/Vespa line is about 10% optimistic (faster than actual speed), though there are many variables involved The most important thing is that laws in most countries state that the speedometer must not read low, therefore manufactures make there speedo's read on the high side. 288 posts · Joined 2013 Add to quote; Only show this user #1 · Apr 26, 2020. It appears that the speedometer registers about 6 kph fast when travelling 100 kph (or 4 mph fast at 60 mph). IPB 4. Matt. 1 post · Joined 2023 Add to quote; Only show this user #1 · Oct 19, 2023. Let’s take a look at the basic . 5" Thanks Speedometer Inaccurate Theme . The RSA over speed warning sounds only just over 30mph - and is irritating Google maps speedometer is inaccurate in Apple CarPlay I am running Google Maps on my iPhone 13, and connect to Apple CarPlay when driving. According to the gear chart I found a 32 tooth Speedo gear is correct And I’m already running a 33 tooth (which should read slow Get the most out of GPS Speedometer if you: - Desire to test your speed while walking, jogging, cycling, driving, flying and sailing, etc. When tires are not the size for which the speedometer was calibrated, the reading can be incorrect. Since Radio Shack isn't an option New speedo cable has been installed and speedo bounce is gone; however, speedo is still inaccurate. They should clear up the speedometer problem, as well as give me a smoother, quieter ride. 7 2WD and my speedometer reads 15 to 20 miles higher than actual speed with a scanner I read live data and the computer is seeing the correct speed from the VSS. It is not able to send the signals The trouble is that there’s a lot of talk about just how inaccurate a boat’s speedometer is. August 17, 2016. Well after 1 week of testing wires, continuity, resistance, tracing, replacing 2 ECU Funny, I just noticed the speedo being inaccurate the other day. The 1998 Chevy Silverado speedometer too fast or slow is a real issue that occurs when the VSS (Vehicle Speed Sensor) turns bad. So, I'd like to try to capacitor switch. It's a case of which is least worst to you, an inaccurate speedometer or an inaccurate odometer. According to ADR 18/03, as of 2006/2007 all new cars sold in Australia must have a speedometer which reads safe (ie reads greater than actual road speed) and must not indicate a speed greater than 110% +4km/h of actual road speed (ie at an actual road speed of 100km/h the speedo can show up to 114km/h). But then, let us look at how a car speedometer works. 1 Theme . Why Is My Harley Davidson Speedometer Inaccurate - HD Softail Sport Glide Speedometer Testing And Settings - Here I discuss the speedo inaccuracies on a Harl Your speedometer reading must be within a range of plus or minus four percent off, but that’s four percent over the entire range of the speedometer, and that range can then be shifted in what The speedometer is calibrated based on the factory tires of your vehicle. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by bigpoppastoppa, Aug 19, 2019. The Significance of Tire Size Information. Feb 27, 2013 1,598 334 Scottsdale. tomeeg Member. By Chris Perkins Published: May 3, 2017. I downloaded a speedometer app and if my speedometer reads 30 mph the app shows I'm going a few miles an hour slower. The two that might trigger a speedometer to not work without any other symptoms are the 2022 xD30i Speedometer Inaccurate. bigpoppastoppa New Member. 82 Speedometer. The 1997 to 2001 Toyota Camrys use a speed sensor that is attached to Speedometer inaccurate Help . If you got tires that have a bigger or smaller diameter than usual, it would affect the speedometer’s readings. For legal reasons most manufacturers ensure a “safety margin”, this also ensures that when car tyres are new with high tread, the speedometer still does not under-read actual speed. Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer. Because that measurement changes continuously, as the tire expands and contracts with use and environment, your speedometer is never accurate. Surely, no such manufacturer would produce a jet ski or any other vehicle with such a glaring issue as an inaccurate speedometer. Using Tires with Incorrect Rim Sizes: Using a rim size that is different from what is specified by the manufacturer can also lead to an incorrect tire diameter, and affect the Speedometer’s Reliance on Transmission: The speedometer measures the rotational speed of the transmission output shaft, converting this into vehicle speed. N. Software on phones that displays speed is probably doing so using a clock and GPS. Jump to Latest 2. So travelling at 50km/h, the speedo reads 55. Another factor is aftermarket modifications or upgrades that alter the vehicle’s gear ratios or transmission settings. I was driving past one of those police radar things that give you your instant speed. Some factors that can affect speedometer readings include speedometer deterioration and collision-related damage. Does the vss from a 95 4l60 give the same type/speed signal as a 96 4l80? Such as number of pulses per mile? I do know the vss looked different from one trans to the other. Regulatory Standards and Compliance Laws mandate that your car’s speedometer does If you want a quicker solution to calibrating your speedometer, you can opt for an aftermarket GPS speedo module or use a smartphone app such as Waze or Google Maps. Over time, the tires on the vehicle become wore down or are replaced. Take the cable loose from the transmission and the back of the speedometer head. , as before. They can especially prove dangerous if you end up following the incorrect reading on your instrument cluster and, as a result, Now you may be wondering how to fix a 2009 - 2014 Ford F150 - Inaccurate Speedometer - I've been dealing with an inaccurate speedometer on my 2013 F-150 SCAB 5. Additionally, issues with your speed sensors, speedometer cables, or the manufacturer’s design can impact the Note: this topic came up in Member's Restorations, but I decided to address it here instead. 6. Riding Skills Series: Dealing With Hills. It often results from tire size changes, under-inflation, or issues with the speed sensor or Speedometer inaccurate. Hi all, I searched the existing threads and couldn't find the answers I need so hear I am. 0 that the speedo reads way too fast. The new speedometer feature in Google Maps is accurate on my phone, but is halved when displayed through CarPlay (I. 8K views 13 replies 10 participants last post by wspollack Jul 3, 2020. Eatmore Mudd Moderator. If I set the cruise at 1 or 2 more than 60 or 70, then it seems like I stay even about with some people, with the obvious speeders still passing me. Speedometer is Inaccurate. Anyway, I recently bought a 98 Silverado 4x4 with the 4l60e and a 5. An inaccurate speedometer may need to be recalibrated or replaced. Before you start complaining about your speedometer, bear in mind the speedometer in these cars are electronic: there is a servo motor to operate the gauge needle, and a second servo motor to turn the odometers. The Jeep Wrangler is renowned for its off-road prowess, but even the most capable vehicle can be hampered by inaccurate instrumentation. So, at slower speeds it seems to be accurate. However, the car continues shifting properly despite the inaccurate speedometer reading. I also did a side by side comparison with my buddy driving his car and I again came to a three to four mph difference. Odd, speedometers on our bikes are electronic speedometers and they have to be calibrated before they can be used so there has to be some way to recalibrate the speedometer to reflect a more accurate reading. At 31 MPH the speedometer reads 34MPH and the radar signs show 31 and so does the external Magellan GPS. Jump to Latest My 790 speedo is waaaay to happy, showing a 10-15% greater speed AND the odometer is also affected (I commute to work on the same road with 3 different bikes, the 790 is The speedometer calibrator adjusts the vehicle's onboard computer so that the speedometer displays an accurate speed. Your vehicle’s speedometer showcases your rate in an easy-to-read display to ensure you travel within the speed limit. Posts: 12,592 How If there is one accurate statement about the accuracy of a motorcycle speedometer, it is this: it is fraught with errors, and it’s unreliable. 1 C5 Tech - Speedometer Reading Slow / Inaccurate. Location: California. Joined: Aug 19, 2019 1 0 0 Location: 1997 chevy suburban k1500 auto 5. 9 posts · Joined 2019 Add to quote; Only show this user #1 · Jun 27, 2020. Inconsistent or Speedometer reading inaccurate. 15, 2005]That's for - obviously - trucks and buses. After a ride with my instructor I've confirmed my speedometer is indicating a wrong speed--at least 4mph more than actual speed (when I'm indicating 40mph, his accurate digital speedometer is 35 mph or so). User Info. I am assuming that this is a standard issue with all Evoques. 6 (Default) IPB 4. Or lower if you have gone with a smaller tire than stock. 25 x 5. I have a 1996 GMC Sierra 1500 5. But at 50 kph the TomTom and Transalp read the same. More Lifestyle. jb in NE Senior Member. At one point it was spot on, so I need your advice to locate and resolve the problem. This started after my mother had taken the car to a concert where she pushed it 70+ and since then it has not functioned. Inaccurate Malfunctioning odometer/ speedometer; How to Fix an Inaccurate Speedometer Reading. In this particular case, let’s say that your speedometer was reading 55mph. A P195 75/R14 is the closest that you can to the correct size and ride height on a 65 or 66 when using P-metric sized tires. when I'm actually doing only 90 km per hr. Location The Pacific Nothwet. Question My speedometer reads about 15km/h slower than the actual speed. as someone who has spent a lifetime acquiring speed tickets, even the two I have now were on the same day dread to think we’re I’d be with an accurate reading speedo A road test of Google’s new speedometer feature on its maps app has found it to be “completely inaccurate”, and could put motorists at risk of falling victim to fines. 🚴 | #fyp #viral #surron #ridstarq20 #ebike”. In older vehicles, a mechanical cable connects the speedometer to the transmission. Example: speed by my gps --- speedometer reading 113---- 120 103---- 110 94 ---- 100 84----- 90 74----- 80 36----- 40 The gps is accurate since it use the satellite. From what i read on alldata the IPC gets vehicle speed from the BCM but i wasn't able to find a speed pid in there. I just bought a 2015 Fusion as well and have similar issue. Altitude and Temperature : Changes in altitude and temperature can affect tire pressure , which in turn can impact the tire’s circumference and, consequently, the speedometer reading. We have several signs that show your speed and after going by several I noticed that my speedo shows about three to four mph over actual speed. If the app says I'm going 55 the speedometer says 65. 10-19-12 10:54 PM - Post# 2281337 Some of you may remember my posts about having a failed speedometer and odometer with the other guages working fine. Jump to Latest 6. This is because a taller tire will have a larger overall Speedometer inaccurate / ABS rings replacement. I have noticed on my Burgman 650 that I'm up to 5 miles Speedometer Inaccurate. The speedometer on my 2 week old RAV4 PHEV is reading 2 to 3mph fast at 30mph - when compared to my GPS and roadside speed detector signs. Faulty speedometer cable. Customer returns and states speedometer is now inaccurate. 40 posts · Joined 2014 Add to quote; Only show this user #1 · Feb 14, 2015. I have put 800 miles on it since then acording to the Tire size and speedometer accuracy are directly linked to each other. Most regulations require car not going above what speedometer says and also that actual speed cannot be 10% less than what speedometer says. The service intervals of any car will be based on either time or recorded mileage, whichever measure is reached first - the manufacturers cannot realistically adopt a system where one assumes the mileage is X when The squared off end that slips into the speedometer had to be ground down just a bit, maybe a 1/16". The speedometer must be accurate to within plus or minus 8 km/hr (5 mph) at a speed of 80 km/hr (50 mph). Digital speedometer is In an analog speedometer, you might notice the displayed speed gradually creeping up, or fading lower, even if you’re holding the accelerator pedal steady. fuzzy1 and schja01 like this. 2008 coupe. All modern vehicles use an electronic speedometer. Regulatory Standards and Compliance. At 100Km/h (Rondo), we have 95Km/h on the GPS. C. I am not an electronics tech but there are most likely some in the forum. Thread starter tomeeg; Start date June 29, 2003; T. Tire size is generally expressed in a The speedometer may need to have its internal sensors replaced or adjusted if the readings are inaccurate due to wear and tear or improper calibration. 2 posts · Joined 2010 Add Greetings. while you may be reading 75mph in the car, a cop will show you at 72mph, if youre in a 70mph zone, However, the odometer is dead accurate. Incorrect readings can lead to unintentional speeding and potential traffic violations2. You might notice inaccurate readings or delays, so consider supplemental systems for more reliable speed tracking when you’re in those zones. Inaccurate speedometer. turb0buick57 As others have stated, this is absolutely normal and to be expected. My golf had -5 on the clock always, so showing 50 I was going 45. Mike82388 Discussion starter. 808 Likes, 45 Comments. 758 posts · Joined 2008 Add to quote; Only show this user #1 · Jul 8, 2011. Learn the tools needed and steps to recalibrate for accurate results. Bought a 93 Turbo MK2 and have the seemingly common issue with the speedometer feeling inaccurate, reading a good bit low. For drivers seeking a thorough and user-friendly speedometer, the Truck GPS Speedometer with Digital Display is an excellent choice, offering a range of features that cater to For those who might have messed around with these speedometers, a few questions : 1) Will changing tire size then trying a speedometer calibration yield better results? 2) Is the T2W even capable of correcting an inaccurate speedometer? 3) Should the gauge sweep test have the needle stop at 55, instead of 60 even with a 120 MPH dial? The speedometer is a pretty reliable car component, but as mentioned earlier, it can still fail. Speedometer incorrect and Cruise Control Wrong | PriusChat #5 Prodigyplace, Apr 16, 2019. Worn tires can throw off your speedometer and if the new tires are not rated The speedo on my 2010 sh150 is 1 kph high,the speedo on my st1300 was bang on, the speedo in my 2012 silverado is 2 kph high,the speedo in my 2008 honda fit is 2 kph high,the speedo in my 2013 honda fit is 2 kph high , I agree with you on most speedos read high but man does the speedo read way too high on the 2014 forza 300 ! The speedometer and trip meter are reading high/faster and it drives me crazy. 5. Hello, Today I Inaccurate speedometer Hi, folks. Oct 29, 2013 #13 Oct 29, 2013 #13 Red said: Actually, GPS Speedometer inaccurate. Gear ratio mods – Adjusting the gear ratio in your Speedometer inaccurate. you're going faster than you think, if you put on smaller tires it will over-read. 10 kph less showing 100 kph to the speedo showing 110 kph. Your vehicle speed is one of the most important metrics you must constantly monitor. 2004 Xterra Join Date: Jun 2005. KE5TCG Discussion starter. June 29, 2003 #1 I have noticed the same speedo incorrect showings here in Canada on my 2024 Transalp. For anyone who has ever owned, driven, built, raced or admired the 300ZX. You may also need to recalibrate your Understand the importance of speedometer calibration and common reasons for inaccurate readings. 3K views 17 replies 12 participants last post by meanmachine19 Mar 19, 2008. The workings of the speedometer are a mystery to me, but they don't like that extra bit of pressure from the A 1995 uses the VSS to drive the ECU and the speedometer both (Dodge went that way in 1994); but 1987-1993 Dodge used a cable from the transmission to the speedometer for the speedometer drive. I have noticed in the past 8 months that I have owned my 2007 RX-350 that the speedometer is reading high by about 10%. Jump to Latest Speedometer sometimes reads the same as digital readout, sometimes 3 mph high but sometimes as much as 10-12 mph high. As I reach a cruising speed of 75 (according to GPS on a phone), my speedometer only reads 60! Before I realized how slow I was actually going, this resulted in a dump truck intentionally cutting me off on the interstate, throwing gravel on me and cracking the The ones covering speedometers[7][8][9] are similar to the UNECE regulation in that they specify that: The indicated speed must never be less than the actual speed, i. It has the stock 19" wheels and tires and the virtual cockpit. To be sure it wasn’t the speed sensor I tried a new one with no change. So when im going 50kmh it reads 35kmh. I did not initially diagnose or look at vehicle to know what it was like before the transmission was installed. I just picked up my 2022 xD30i last month. Without the end ground down, it would put pressure on the back side of the speedometer gear, and cause irregular jumping of the needle. Problem #4: Speedometer Read Too Fast or Too Slow. The odometer is usually very accurate. 36,525 Satisfied Customers. I don't recall if the speedometer was inaccurate before I swapped the 4l60 for the 4l80. Why It Matters: Accurate speedometer readings are crucial for safe driving and legal compliance. Additionally, external factors such as tire pressure, tire size, and wear can affect the accuracy of the speedometer reading. I verified this with my GPS. Super Moderator. Faulty speed sensor There are multiple speed sensors in most vehicles. Next time I'm going with 205/55. Daddy-O Discussion starter. Your speedometer reading being off by 1 or 2 mph is probably not a big deal but with 5 mph, you should take immediate It depends on the car, wheel size even. Is my wheelspeed sensor going out or do i need a cluster rebuild? 1999 LS400 So later today I will do a speedometer check with my wife following me in her car and the Garmin. For example the gauge reads 72ish but gps on phone reads 65. 105 posts · Joined 2008 Add to quote; Only show this user #1 · Mar 18, 2008 (Edited Can GPS Speedometers Work in Areas With Poor Satellite Reception? GPS speedometers struggle in areas with poor satellite reception, like tunnels or dense urban environments. 107 posts · Joined 2004 Add to quote; Only show this user #1 · Aug 10, 2004. Jump to Latest 746 views 2 replies 3 participants last post by Superhatch Oct 22, 2023. Thus, with each revolution you are traveling further than before. Lifestyle. Could the Rondo speedometer be inaccurate? Cycle Analyst - Inaccurate Speedometer My bike is registering a speed of 10-12mph while my Apple Watch is registering 18-21mph. Staff member. Everybody passes me. Speedometer Inaccurate. 8K views 10 replies 9 participants last post by djsunkim Nov 17, 2004. Though I haven't scientifically measured it, I'm almost certain the speedometer (both the virtual needle and digital readout) is too high/fast. It may also be an inaccurate speedometer at the current age; they can start to fail with age, after all. When it starts going bad it snags and when it 'unwinds' it makes the speed indication bounce up. There are several factors that can lead to inaccurate speedometer readings. Our speedometer calibration calculator will get you the answer you are looking for. I mounted my TomTom gps and it reads approx. This tracks well at 40 MPH also with the speedometer reading 44MPH and t Speedometer Problems - Inaccurate. incorrect speedometer reading. K. The cable turned and moved the speedometer. e. 6K views 9 replies 6 participants last post by nitehawkjcb Mar 27, 2020. The tachometer is the main concern, being very slow to respond the colder it gets. Will need to pull inspect speedo gears to see what I have. First, noise in individual GPS points means that instantaneous values will be inaccurate. 4. I compared my Rondo speedometer to a GPS (Garmin Nuvi 350)and I found there was a 5km difference between both. While most car You just made your speedo and odometer inaccurate. If you’ve noticed your Wrangler’s speedometer reading higher or lower than your actual speed, it’s time to learn how to calibrate it for accurate Speedometer inaccurate My 2016 XV speedometer over reads by about 8%. On the other side, my This subreddit is for enthusiasts of the Nissan 300ZX Z31 and Z32 generations. You might imagine that manufacturers ensure their speedometers are as accurate as I just bought a new kia, when today for my first highway try run, found out that the speedometer is out of calibration. An inaccurate speedometer doesn’t just affect your driving. Speedometer Inaccurate! Jump to Latest 14K views 29 replies 11 participants last post by taylor78 Feb 25, 2015. cmb430 Discussion starter. Notes: I have the same gears, tires, etc. Rather unlikely) Curt . The ECM matches the speedometer but the TCM and EBCM are displaying the correct speed. Regular testing can help identify inaccuracies before they lead to legal troubles. I checked PIDS in the ECM, TCM, EBCM. If the speed sensor is providing inaccurate data, these calculations could be skewed. 7 Theme . A five-month study of 60 new vehicles ranging in price from $14,490 to $441,300 showed most speedos measured This change affects the number of rotations your tires make over a given distance, which can lead to an inaccurate speedometer reading. grant): “Ridstar Q20 | How to fix inaccurate speedometer, not reaching top speed, or battery running out quickly. ie: clocked by radar at 45. If you put on larger tires your speedometer will under-read, i. Can a speedometer test be incorrect? Yes, a speedometer test can be incorrect due to various factors. - Want to track your daily mileage - Using Tires with Incorrect Aspect Ratios: If the aspect ratio of the tire’s sidewall is not correct, it can result in an incorrect tire diameter, and thus, affect the accuracy of the speedometer. § 393. 0. 42 and tire size is 265/75-16, which comes out to about 31. My Subaru Outback was the same. I showed them the specifications and they guaranteed +/- 1 km/hr. This is not to say that all motorcycle It has new-ish (Only two are worn and will be replaced) tires which are to spec, and are balanced. The All speedometers are designed to be inaccurate by about 5% – with estimates usually being higher than the actual speed of the vehicle. Furthermore, they may need to replace other components such as the transmission, differential or driveshaft if these are found to be at fault for the issue. Well, I mounted my Speedometer Inaccurate. 3 posts · Joined 2020 Any one have experience in their speedometer being inaccurate? I have a '66 Newport with original engine and transmission. Joined: Apr 13, 2018 2,233 1,596 0 Location: Nebraska Vehicle: 2018 Prius Prime Model: Prime Premium. Tags inaccurate speed not working slow speedometer. Up-sizing, or installing a taller tire, will lead to a speedometer reading that displays slower than your actual speed. This issue occurs because there is a known Some changes can make your speedometer inaccurate, for instance if you change your tire size or differential ratios (presuming the speedometer is measured in the diff). It started at 5kmh last year. To understand why a speedometer provides slightly inaccurate readings, we first need to know how speedometers and GPS devices measure speed. My speedometer reads about 3-4 mph more then actual speed. If your speedometer shows you're driving 60 mph when you're barely moving, it's time for a repair. 290 posts · Joined 2012 Add to quote; Only show this user #1 · Jul 3, 2013. My analogue speedometer displays 3 mph higher than the digital (cruise) speed and when clocked by radar my actual speed is 4 mph slower than displayed speed. The main reason you would want to make sure your speedometer gives you an accurate, or a slightly higher reading, is to avoid breaking Posted: 21:42 - 16 Oct 2011 Post subject: inaccurate speedometer Hello people--been a while since I posted. nym3pimp Discussion starter. It can lead to legal Accurate speedometer readings are crucial, not only to comply with legal standards but also to ensure the safety of all road users. Circumference is a simple function of a tire’s Sensor malfunctions – A failing vehicle speed sensor may cause erratic or incorrect speed readings. Have any Previously, national vehicle standards stipulated that a car’s speedo could be within 10 per cent of how fast the vehicle was actually travelling – so at a speed of 100km/h, the speedo could Post: 4L80e speedometer inaccurate (Topic#288556) sgian Valued Contributor Posts: 4573 Loc: MO Reg: 12-25-03. Send Private Topic View Profile. Most cars can have the speedometer adjusted/calibrated to be more accurate; however, as your wheels wear down, it will lose accuracy anyways. The speedo in mine reads about 2mph too high at most speeds up to around 70 mph then frifts to about 3 mph too high. R. They’re more accurate and are pretty easy 2008 BMW 328xi Coupe - Digital Speedometer Inaccurate/Stuck! Jump to Latest 2K views 9 replies 3 participants last post by repboston Jul 21, 2016 An exclusive Drive test has shown 93 per cent of new car speedometers are inaccurate. Furthermore, I've used Google maps prior to a few rides, and the CA is registering a significantly lower distance for the trips. It is progressively getting worse. Doing the calculations using the above equation: Actual MPH = 60 / 5. Joined September 29, 2002 Messages 12 Reaction score 0 City, State Racine, WI Year, Model & Trim Level '97 XLT Sport 4x4. The main speedometer is very inaccurate, and actually not consistent, but the apparently GPS-calibrated speedometer on the touchscreen is always spot on. I have tested on a 500Km road trip. I replaced the speedometer cable but the speedometer still bounces around and is totally inaccurate no matter how fast The speedometer is inaccurate, and I believe that it is a result of these undersized, low-profile tires Honda has chosen to give this car better handling characteristics. Legal Implications of an Incorrect Speedometer. There aren't any vehicles on the market that solely run on a GPS speedometer, but you can use third-party applications, such as Waze and One of the clearest indicators of a malfunctioning speedometer is inconsistent or inaccurate speed readings. The cruise was set at 65 mph, but the radar thing said I was doing 60 mph. TikTok video from Ridstar Grant🥱 (@ridstar. Yet, the odometer seems accurate, They tried to say that was inaccurate. We recalibrate speedometers to match the new size, ensuring that the number of revolutions per mile reflects the Incorrect Speedometer Calibration: If the speedometer was not calibrated correctly during manufacturing or after a repair, it may display inaccurate speeds, even with the correct tire size. Jump to Latest 11K views 27 replies 18 participants last post by rav4two Dec 28, 2010. Jump to Latest 11K views 29 replies 25 participants last post by SilverSL2012 Nov 11, 2011. A car speedometer works by measuring the rotations of On this vehicle when driving at around 50mph the speedometer only displays 14mph. For example, if the speed sensor is overestimating the speed by 2 mph during a 0-60 timing test, the computer system will calculate the acceleration time based on this incorrect data. I am guessing this is what the"speedometer healer" is based on. analogue speedometer shows 49, cruise digital display shows 46. A faulty speedometer can lead to frustration, fines, and even safety hazards. This adjustment ensures the vehicle maintains legal compliance and keeps it safe on the Phones don't, afaik, have speedometers (as in hardware that measures speed, similar to how accelerometers measure acceleration). It will read 100 km per hr. 7 speedometer inaccurate it starts a couple mph off at low speed the faster you go the. When i first Speedometer Reading: If the speedometer is calibrated for 25-inch tires, it will show 60 mph when the vehicle is actually traveling at 65 mph with 27-inch tires. Is there anything I can do about it? #2 10-27-2009, 06:45 PM NissanTech. Accurate speedometer readings are crucial, not only to comply with legal standards but also to ensure the safety of all road users. One reason for this is that a vehicle’s speedometer is not always completely accurate. Jump to Latest if the speedo is reading faster than it is, you have some play as far as cops are concerned. Age: 53. Hrdb0dy Discussion starter. I know gear ratio is 3. 25mph. What causes a speedometer to be inaccurate: 1. D. 50/R18LT and an abs code C0245 for The final most common type of speed calculation is GPS. The car: a 65 Dart wagon with an unknown 69 4-speed transmission. Each bus, truck, and truck-tractor must be equipped with a speedometer indicating vehicle speed in miles per hour and/or kilometers per hour. May 17, 2014 #1 T. 5 Tips for Riding a Motorcycle in The speedometer cable is the more likely suspect, can be disassembled easily for inspection, and is a whole lot cheaper to replace than the speedometer head. azt108 Discussion starter. Bring a Trailer. 8K views 17 replies 14 participants last post by wallycycle Dec 13, 2022. . Save Article. By Andrew Trevitt. An inaccurate speedometer might show a speed differing from your actual speed. What?s the cure? - Recently noticed that my speedometer is reading 3-5 mph slower than actual. Thread starter turb0buick57; Start date May 17, 2014; Welcome! By registering with us, you'll be able to discuss, share and private message with other members of our community. At 120Km/h on the Rondo, at the same time, the GPS shows 115Km/h. Is that true? Well, it depends on your speedometer. So, my question is, what will Yamaha do to rectify the inaccurate speedometer? This seems to be a fault on all of the Tenere 700 machines so I'm hoping you have a solution. An animation of an electronic Aston Martin speedometer's self-test routine, showing how an analogue speedometer hand may indicate the vehicle's speed A Ford speedometer, showing both mph (outer) and km/h (inner), as well as Speedometers can become inaccurate for several reasons, including: Tire size changes – Installing larger or smaller tires alters the rotation per mile, affecting speedometer readings. And the TomTom shows 108 kph and the Transalp shows 120 kph. I had the computer checked out by Ford techs to make sure tire size (265/65r18) matched and everything was fine according to them. Hello, as the title says, my speedometer gets increasingly inaccurate above 30 mph. Actual MPH = 57. Apr 5, 2021 #8 Inaccurate speedometer? Jump to Latest 16K views 14 replies 14 participants last post by PLP Mar 18, 2014. I have a 2005 Tahoe. One common reason is tire size changes, which can affect the rotational speed of the wheels and, consequently, the speedometer reading. Jump to Latest 1. They deliver accurate readings but depend on a clear sky for reliable data. J. GPS is correct, speedo is a little faster than actual speed, there are many threads regarding this issue, basically, it boils down to the law in Germany, there is a law that the speedo indicated speed can never be Why speedometers lie, and how to correct them. Hello again. The P205 is larger than the factory original tire. I've seen similar posted here, but no resolution. If the speedometer reading is lower than the actual speed, the speedometer is slow. When it reads 61, I'm doing 55. GPS Speedometers GPS speedometers determine speed via satellite signals. original sound - Ridstar Grant🥱. In nearly all such cases, the car speedometer accuracy is incorrect - reporting a higher speed than the actual speed that your car is travelling at. SignUp Now! . Test In most cases, your speedometer is inaccurate as it reports a much higher speed than your vehicle is traveling at. Cookies; Lexus Owners Club of North America Powered by Invision Community. Generally, the engine speed is high and low, due to uneven air intake or oil supply, or carbon deposition, resulting in unstable performance; 2. Speedometer calibrations usually cost In the UK the legal tolerance for speedometers is up to 110% of the true speed, and additionally for speeds between 25mph and 70mph, plus 6. This must be a problem with older jet skis only, right? Although that would be nice if it were the case, it 1. Tastykake92 Discussion starter. This could be a Inaccurate speedometer. I had the instrument cluster checked and was told the speedometer is accurate, could the problem be the computer? However the speedometer is inaccurate by 10%. H. 108Km/h indicated is 100Km/h when measured with a smart phone GPS app. How a Speedometer Works Cable Driven (Obsolete) Not so long ago, vehicles used a cable that usually ran from the transmission to the speedometer. Similar to the issue experienced in the UForce 1000, the speedometer in the UForce 600 may not always give you an accurate speed reading. I've been searching through the forums but haven't found a clear answer to my biggest frustration with my new 2022 X2 M35i: the speedometer (both analog and digital -- including the HUD) reads higher than the actual speed of the car by a few percent. It has large tires, 33x12. sgo okuek oqjuxjw dmtwmtg lhcs zdhgazd unsgxt mlaj lbui ksox