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Why would a tachometer stop working on a 2003 Chevy Trailblazer and will it cause any other problems until checked?
Wiki User
∙ 14y ago
There's a lot of things that can make a tach not work. Wiring, bad sensor, computer problem. But unless a check engine light is on, then the computer is probably still getting the signal of rpm's. It can wait until you can get it fixed without any added problems. If it's a standard tranny, just make sure you don't red line it.
The instrument panel uses a series of simple stepper motors to drive the gauges. There have been many problems reported in various 200x GM vehicles and there are upgrade motors that can be installed if you're handy with a soldering iron. The motors are rather cheap at $10 each (versus a new $450 factory cluster). Some places offer swaps or will repair yours. Check eBay (of all places) for parts and/or service folks.
Wiki User
∙ 14y ago
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