99 Chevy Speedometer Error

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2005 Chevy Speedometer Not Working

Thread Tools Display Modes 11-25-2014, 08:51 PM #1 lindstromjd Gentleman Jim owner x2 chevy speedometer cluster problems Join Date: Oct 2010 Location: West Des Moines, IA Posts: 464 1998 Silverado Speedometer is reading too fast Not sure if this is a common problem

Chevy Silverado Speedometer Not Working

or an easy fix, but the forum won't let me do any searches with "speedometer" in the key words. Anyway, I recently bought a 98 Silverado 4x4 with the 4l60e and a 5.0 that the speedo reads way too fast. I verified chevy avalanche speedometer not working this with my GPS. When the speedo reads 50, I'm doing about 45. When it reads 61, I'm doing 55. When it reads 83, I'm doing 70. Etc etc. What's the fix for this? The tires are not oversized, either. And as far as I know, the transmission has been rebuilt, but not too sure how accurate that statement is. Probably just something the guy I bought it from said to make it more "tempting" to a potential buyer. It does throw a P1870 code, chevy trailblazer speedometer not working but that's a different issue. __________________ 1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 lindstromjd View Public Profile Find More Posts by lindstromjd 11-26-2014, 01:50 PM #2 UKNOWME Senior Member Join Date: Aug 2012 Location: Clovis, NM Posts: 1,902 Re: 1998 Silverado Speedometer is reading too fast Quote: Originally Posted by lindstromjd 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. Anyway, I recently bought a 98 Silverado 4x4 with the 4l60e and a 5.0 that the speedo reads way too fast. I verified this with my GPS. When the speedo reads 50, I'm doing about 45. When it reads 61, I'm doing 55. When it reads 83, I'm doing 70. Etc etc. What's the fix for this? The tires are not oversized, either. And as far as I know, the transmission has been rebuilt, but not too sure how accurate that statement is. Probably just something the guy I bought it from said to make it more "tempting" to a potential buyer. It does throw a P1870 code, but that's a different issue. That transmission doesn't have a gear so it's signal comes from a speed sensor. If that sensor was bad it should set a code. Maybe the transmission was taken from another application that has a different speed sensor. Another possibilty is if the gears have been changed. Doe

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Several functions may not work. Please re-enable javascript to access full functionality. NEWSROOM:OFFICIAL DURAMAX LP5 HORSEPOWER AND TORQUE LEAKED Speedometer Calibration Started by Leroy, Mar 04 2010 08:41 PM This http://67-72chevytrucks.com/vboard/showthread.php?t=651002 topic has been archived. This means that you cannot reply to this topic. 12 replies to this topic #1 Leroy Leroy Enthusiast Member 40 posts Location:Washington State Gender:Male Posted 04 March 2010 - 08:41 PM Just found out the 2006 silvy i just purchased has 18" wheels vs. stock 17". Guess i wasn't too concerned about it until i went http://www.gm-trucks.com/forums/topic/110408-speedometer-calibration/ to look at getting stock P25 wheels. Is there any speedo calibration needed when switching wheel sizes or is it automatic from where the speedo connects on rig? Where ever that is. Thanks Back to top #2 Jim67 Jim67 Enthusiast Banned 152 posts Posted 04 March 2010 - 08:45 PM Wheel size has nothing to do with it, tire diameter does. And there is no speedo cable on modern trucks. They are all electronic and can be re-programmed for diferent tire sizes. Back to top #3 wcortesi wcortesi Enthusiast Member 88 posts Posted 04 March 2010 - 08:56 PM Wheel size has nothing to do with it, tire diameter does.And there is no speedo cable on modern trucks. They are all electronic and can be re-programmed for diferent tire sizes.That's exactly right. The circumference is all that matters. Try this out to check: http://www.tiresizecalculator.info/ 2008 Silverado LTZ 1500 Ex. Cab 4WD with many bells, whistles and buttons. Back to top #4 Jim67 Jim67 Enthusiast Banned 152 posts Posted 04 March 2010 - 08:57 PM The circumference is all t

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› Chevrolet Tahoe › Solution to the speedometer problems Solution to the speedometer problems Posted in the Chevrolet Tahoe Forum Leave a Comment Track Replies Comments 21 - 40 of 243 Comments Last updated Tuesday Sep 20 First Prev of 13 Next Last Marty Columbus, OH #21 May 15, 2007 Anthony wrote: I own a 2004 Tahoe. At about 70,000 mi. The speedometer was acting crazy. The manufacturer would not help me. They said there were many complaints about this but there was NO recall!They tried to sell me a new insterment cluster for 600 bucks. I bought an aftermarket one for 300, and installed it myself. It was very easy to do. Just pop off the face trim plate, unscrew 4 screws, unplug the old unit, and replace it with the new one! It only took 20 min. I bought my insterment cluster at JP Customs. In replacing the cluster will it reset the odometer or will the computer maintain the mileage after you unplug the old and add the new one? Judged: 192 89 Reply » Report Abuse Judge it! rod United States #22 May 18, 2007 HEY, GREAT NEWS, FOUND THIS GUY ON EBAY, HIS EBAY NAME IS "mandigital" AND HE REPAIRED MY 04 TAHOE SPEEDOMETER AND SHIPPED IT BACK THE SAME DAY, HE REPALCED ALL THE STEPPER MOTORS AND BULBS FOR $148.00 AND A 5 YEAR WARRANTY,,,,ALOT BETTER WARRANTY THAN GM WILL GIVE YOU.... HE LIVES IN MINNESOTA... THIS IS ThE MAN TO DEAL WITH, ALSO HIS EMAIL ADDRESS IS [emailprotected].., i gave up with GM, Foreign here i come... Judged: 28 6 1 Reply » Report Abuse Judge it! don at okc United States #23 May 22, 2007 i have 04 gmc with bad speedometer called 3 different dealers they wanted 500.00 to fix this is crazy gm has quite a problem why don't recall this item,if gm is all about quality service,nowonder people are jumping ship. the dealers told me that it was a big problem and gm not going to do anything unless are made too. Judged: 25 4 Reply » Report Abuse Judge it! question United States #24 May 27, 2007 Steve wrote: My wife's '03 Suburban started having the same speedo problems. In fact, just went to 120+ mph on Thur