My tach no longer works and getting false overheating. Needle pegs and engine runs as normal with fans on. Coolent is full and no leaks. 37000 miles. My question is,before I bring to dealer, is this covered by GM? I have read online of other cases like this.Seems to common.
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2005 Chevrolet Impala Question: Instrument panel
Answer #1V8Turbo October 28, 2010, 11:15Technician
This is very common on the 03-06 GMs. The cause is the motors behind the gauges are failing, they all go out eventually. You can get it repaired here - www.drspeedometer.com and there's a DIY guide here - www.howtorepairmyinstrumentcluster.com