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Ok, 1st my 2.8 idles really high. 1500rpm's. Every once in a while it will go down to 850rpm's as its suppost to. Is this a sensor? It runs good, gets crappy gas milage. I just get tired of pushing the clutch in and hearing the motor rev up instead of down.
Next I have this squeal I can not find yet. I just replaced the power steering pump and altenator. I have heard the idler pulley has alot of problems. Anyone else experienced this? In conjunction with the mild tune-up I gave it. The only thing I haven't done yet was change the o2 sensor. Which will be next. Does anyone know of a good book explaining GM fuel injection?
 
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