By CMAC on
Vehicle1999 GMC Yukon SLT 4dr SUV 4WD
ReviewOne of the other reviews says that there is a misfire in the 5th cylinder. Mine misfires from the 6th cylinder and shakes like crazy when put under a load. There is a TSB from GM about the problem. It is a defect from the factory. What happens is the sleeve on the valve stems deforms from the heat and begins to bind. Instead of a recall, GM chooses to ignore the fact that these engines are defective. I called GM to see if they would repair the defect and they declined. Last one I will buy. Had to replace the transmission, fuel pump, radiator and the engine is screwed up. Plus the door handles are falling apart and most of the power door locks stopped working. Lemon
Worst FeaturesMore power, better fuel milage, better brakes
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