Question about 2004 Chevrolet Monte Carlo

2 Answers

Speedometer Not Reliable

After starting engine, speedo needle is not always on 0 mph. Sometimes its on 20, 30, or even 40. It clims with increased speed but this causes the speedo to read 20, 30 or 40 mph faster than I am really traveling. The opposite is also true. Sometimes it starts below 0 mph, thus I travel faster than the speedo reads. And then again, today it may be fine. Any history with this problem?

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  • mouth1 Aug 06, 2008

    That's exacly what I had to do. Thank goodness for ext. warranties. Mine went bad at 58K miles. I wonder how big a problem this has been for this year and model.

  • Anonymous Nov 15, 2008

    i had the same problem with my spedometer. Had to pay $300 to get it fixed - ouch!

  • buddy2288 Nov 23, 2008

    Same problem its been doing it on and off for over a year

  • ehunziker45 Dec 14, 2008

    same problem....2004 monte carlo ss

  • Anonymous Jan 05, 2009

    Had the same exact problem on my 2004 Monte Carlo Supercharged SS at about 45,000 miles. NO WARRANTY. Contacted my Chevy dealer and they told me $850.00 to replace the whole gauge cluster. I contacted GM customer care ( you can find their phone number at after explaining to them that this should not happen at 45,000 miles or even at 200,000 miles with the gauge cluster they told me they will contact the dealership. Basically with the help of GM directly i ended up paying $100 of the $850 and GM picked up the rest. THIS IS A HUGE PROBLEM with A LOT of GM vehicles.

  • Anonymous Jan 08, 2009

    same problem, works more in the summer than winter, 2004 ls model

  • Anonymous Feb 18, 2009

    I had to replace my gauge cluster twice when I first bought my car, for the same reasons. I notice, too, that my odometer tracks mileage a bit faster than it should, adding two miles for every 100 I drive. How do I know? Because I've been doing some of the same long-distance drives for years... Good luck!

  • shane wilson Apr 12, 2009

    I have the same problem. I bought a 2004 MonteCarlo SS Intimidator back in Aug. with just over 35k miles on it. It started messing up in Sept. Seems to be more affected in the cold. I've just kind of had to deal with it though. I can't afford to get it fixed right now

  • Rhonda May 01, 2009

    gage stopped working about 1 year ago, it would stop on 10 20 30 etc, and it would go all the way to the right as far as it would go. We did contact our dealer who told us this seems to be a problem with the 2004 Monte Carlo but for some reason it hasn't been placed on recall list. And the dealership wanted close to three hundred dollars to fix.

  • Anonymous Mar 12, 2014

    I would like to put 15 inch wheels on my truck which has 14 inch on at the moment what difference will this make to my speedometer reading say I am doing 30 mph what would my true speed be.many thanks Keith

  • Anonymous Mar 26, 2014

    my 95 Chevy truck is not shifting right and the tack is getting stuck at 3000 RPMS and some times it will read 0 my speed reads 60 MPH when im doing 20 to30 MPH



2 Answers

Lol i have the same problem actually except mine is now stuck at 0. its a broken gear in the spedometer mechanism . it seems the only way to fix it is to replace the unit. if you can get one second hand, its not that hard to do...but it is pricy if you needto get a dealer to do it. (400-600)

Posted on Sep 12, 2008

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This happen to me too. Had to get it replaced under my exstended warrenty that cost me the $200 deductable but would of coast over $400 if this happened later.

Posted on Aug 06, 2008


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