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Chevrolet TrailBlazer Speedometer

93 messages,  Last post on Dec 08, 2009 at 6:38 AM

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What is this discussion about? Chevrolet TrailBlazer EXT, Electrical, Transmission, SUV

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#90 of 93 Re: GM in trouble? No wonder [bcorp] by ivan10 May 28, 2009 (12:39 pm)
Replying to: bcorp (Apr 11, 2009 5:38 pm) Okay, I hope everyone reads this on how to fix the problem. Don't call GM they know but they don't want to have to fix all the bad sensors. The problem with the speedometer is not the speedometer but the speed sensor. Here is how to change it. the speed sensor is located on the driver side middle of the car sticking out of the transfer case. There should be a purple white wire coming out of it. Go to Autozone or any parts shop and buy a Vehicle Speed Sensor. Remove the negative terminal from the battery . Get under the car and CAREFULLY remove the plug. If it breaks like mine did just wrap it after your done in black electrical tape. It's a plastic plug. Take a 3/4 inch bucket and remove the old speedsensor. Remove the O Ring. Place the Oring on your new Speed sensor. Screw it in. Plug it back in. Connect your battery terminal back on. Problem solved. Speed Sensor should cost you no more than $28.00 and the job should take you no more than 20 min. and that is for somone who knows nothing about cars. Good Luck Replies to this message: brierpatch (Jun 05, 2009 5:19 am)
#91 of 93 Re: GM in trouble? No wonder [ivan10] by brierpatch Jun 05, 2009 (5:19 am)
Replying to: ivan10 (May 28, 2009 12:39 pm) My wifes trailblazer speedometet droped strait down then would move counterclockwist when the break was applied. I repaired this by, pulling the fuse to the consol. # 24 fuse. it a 10 volt one. I then started the blazer and let it run. the consol was totaly dead since I remover the fuse. I then replaced the fuse use the same fuse while it was still running and everything went back to normal. Like rebooting a computer. It worked.
#92 of 93 2004 Trailblazer Gauge Cluster by leroi2 Aug 19, 2009 (3:11 pm)
Any update on how GM is handling repairs at this time for the gauge cluster (if at all). I haven't really tried contacting them recently; but last check they wanted $400-$500 to fix. I might try pulling the fuse to the speedometer and replacing, just to see if that helps, re boots, whatever, or might try replacing the speed sensor; but it's not just my speedometer. It is everything (a total cluster you-know-what)! Otherwise, I like my Trailblazer and haven't had any other problems; but I am going to have the Dex Coolant flushed out and replace with regular, (another law suit I'm not sure is settled yet).
#93 of 93 Speedometer stop working by zachdo04 Dec 08, 2009 (6:38 am)
I was driving 65 MPH on I35 and got pulled over for speeding, the cop said I was going 75 MPH, later I realized that the speedometer has problem. A week later, I stop working, I called Chevy Customer Service at 1-800-222-1020 and spoke to John, after checking he scheduled for me to take the truck in local dealer to check on the problem, I'm not sure how much will I pay for it, they should have this recalled since a lots of people have problem. This is my very first Chevy and I will never touched it again. Night mare with electrical also.

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