Question about 2004 Chevrolet TrailBlazer
The tachometer in our 04 Trailblazer is reading 7000 and above while the vehicle is at idle. Motor is not reving runs fine.
This is caused by a failure of the little circuit board that moves the tach needle, u can have this repaired by any GM authorized repair center,( this is not at the dealer) ask the dealer for a name and number, they are also availiable on the internet.
Posted on Jan 09, 2009
It's possible that it could be a faulty gauge. This is a pretty common issue for Trailblazers to have, here's a link with more information about these GM gauge problems. And where you can purchase replacement parts on Amazon if you want to do the repair yourself. How To Repair My Instrument Cluster
Posted on Dec 01, 2014
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