Question about 2004 Chevrolet TrailBlazer

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2004 Chevy Trailblazer Speedometer

Hi Everyone..A few months ago my speedometer stop working and then started working again and then stop all together. Two weeks ago my gas gauge quit working,it did the same thing as my speedometer started and then stop all together. Then I was driving home from a short trip and my cruse control went out... Does anyone have a suggestion, to what the problem could be? I was told it was all hook up to my transmission from a repair guy.. what do you think?

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  • russellg1
    russellg1 Apr 30, 2012

    check brake light could be related to ground problem

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Replace the ip cluster will fix speedometer

Posted on Nov 27, 2009

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These guys can rebuild your dash cluster and get your speedometer working properly again. http://www.mrwhizard.com/services2.cfm#Start
It is not the sensors. afterall, what are the odds that 3 sensors would go out at once?

Posted on Dec 02, 2008

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This is usually caused by faulty motors in the instrument cluster, if you have 2 or more gauges that stop working or start reading odd then you can be sure of it. I can help with Trailblazer instrument cluster repair. Check my Trailblazer page here http://drspeedometer.com/services-i-offer/trailblazer-speedometer-repair

Posted on Sep 11, 2010

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The gas guage is a separate issue and not related to the speedo and cruise issue, those 2 thing are caused by a defective vehicle speed sensor. As far as the gas guage it is either the sending unit or a poor ground connection at the tank connector.

Posted on Nov 30, 2008

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SOURCE: I have a 2004 Chevy

Bad Stepper motors....the motors in your cluster are very weak... there is an upgraded motor x 25-168...cost 175.00 parts and labor to replace all of them. Ive repaired a lot of clusters with this very problem

Posted on Nov 28, 2008

  • 1 Answer

SOURCE: my speedometer stop working

It's a bad stepper motor (the device that operates the needle on the gauge).  Replacements can be found on eBay for approx. $4.95 each - just search for "stepper motor".  Just got 6, to replace all of mine.

Posted on Apr 01, 2009

  • 31 Answers

SOURCE: speedometer stopped working

this vehicle has an electronic speed sensor located on the trans i do believe but im pretty sure this is your problem change it and your cured

Posted on Jan 16, 2010

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2004 Chevy Trailblazer We had to replace the


For the stalling issue, the throttle body needs to be cleaned, grime in this area prevents the throttle plate from closing completely and allowing air to enter, making the air/fuel mixture lean.
The dead speedometer could be a bad stepper motor in the instrument cluster or a bad speed sensor on the transmission. If the cruise control is not working, the problem is most likely the speed sensor.

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Tachometer stopped working then the speedometer now the service engine comes on randomly and there is a strange noise when starting the blazer and sometimes it almost seems as though it is not going to...


The speedometer and tachometer problem on your Trailblazer instrument cluster is very common on the 03-06 models. It's caused by failing stepper motors on the cluster's circuit board and can be fixed. Check out this page for more on how to get it fixed - Trailblazer tachometer problems

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Speedometer stopped working


this vehicle has an electronic speed sensor located on the trans i do believe but im pretty sure this is your problem change it and your cured

Jan 15, 2010 | 2004 Chevrolet Blazer

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Hi ;battery guage , speedometer ,rpm guage stay bottomed out.fuel guage did same thing couple o days ago but came back normal.


chevy refuses to recall this speedometer. The same part is in several other models and they were recalled. The stepper motor in the gauge cluster is faulty. The dealership will charge around $700 to replace it. I reported it to the gov't agency that handles recalls and chevy in detroit. No results.

Jan 06, 2010 | 2004 Chevrolet TrailBlazer

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2005 cavalier speedometer sticking at speed..eventually going back to zero from stop..goes up with no problem..just going down..it is intermittent


You need to replace the sending unit ,speed senser,in the transmission housing or repair any shorted wireing comeing from it to the dash.

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I have a 2002 chevy trailblazer LS. The gauges on


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Jun 17, 2009 | 2004 Chevrolet TrailBlazer

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Both speedometer & tachometer not working, both reading wrong.


There was a recent class action law suit settled with GM for this exact problem. You can google gm speedometer lawsuit and get lots of information. Unforutunately for most people I think the warranty was limited to 7 years and 70,000 miles. Which isn't a lot of miles for most people.

If you car isn't covered by the warranty there is a way to "reset" the speedometer.

You can turn the ignition slowly like you are going to start the engine. There is a very small "dead" space where you will see your guage lights go off.

What you want to do is cycle the ignition switch from off to that dead space. Each time you do it your stuck speedometer will move towards zero about 10 mph. So if its stuck on 40 you will have to cycle it at least 4 times.

At first you will probably actually hit the ignition and the engine will try to start.....just release it and try it again.

I know this because I have a 04 avalanche with 80,0000 miles and it has this problem about twice a month.

Jun 02, 2009 | 2004 Chevrolet TrailBlazer

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Both speedometer & tachometer not working, both reading wrong.


"The Fix" works...I would have not believed it untill I did it.... Start the car in reverse and about 5 times later it reset the speedometer back to zero.....wow!

Mar 25, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

2004 Chev Trailblazer Speedometer faulty


speed sensor. its located by the transmission.

Dec 29, 2008 | 2004 Chevrolet TrailBlazer

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