Question about 2003 GMC Yukon XL
Driving my 2003 Yukon at 60mph and all of a sudden the speed odometer will drop to about 40mph and the oil gauge will also drop from about 55psi to 20psi or lower. All other gauges are OK.
GMC yukons are notorious for gauge malfunctions, there are recalls for some models
However, if you have recently changed your battery this problem can occur and will take some driving time 30 min-60 min for the computer to fully reset.
Posted on Jan 20, 2009
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