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1989 GMC Truck Repair Question


Topics covered: Engine, Clutch, Gas.
Mileage: No information provided.

Asked on June 14, 2009

1989 GMC Truck 1989 GMC Class C Mallard Sprinter Chevy Cha

1989 GMC Truck 85,652 miles

When I put it in park after driving it idles way to high. But after 2 or 3 minutes idles down.
Also when on a straight away and doing 55 mph the engine is running and sounding good, then all of a sudden the sound of the engine sounds like i put it in neautal and reved up the gas.

Got any ideas??
Avatar Asked by Dollie

Answer

Replied on January 1, 2010

I think your electric or vacuum idle solenoid needs to be adjusted, or lubed, and the other noise you hear is probably the clutch fan kicking in.

Tiny Answered by mickey-d
2 questions asked