90 SEARRIA

1990 GMC Truck

Tiny

tkdmiller

December, 16, 2010 AT 10:06 PM

My truck shaking while idling seems to loose power?

FOUND 1825 RELATED QUESTIONS

3 Answers

Tiny

rasmataz

December, 16, 2010 AT 10:10 PM

Do you have a check engine light? Don't recall last tune -up start here and see what happens

Tiny

tkdmiller

December, 16, 2010 AT 10:37 PM

I just had the spark plugs replaced, new spark plug wires, new fuel pump. I had this issue before I had all this done. Thought that fixed it. The shaking comes and goes. When I rev it up it seems to go away. It happens when I come to a stop and is slow to take off but runs fine once I get it going. Could it be the transmission?

Tiny

rasmataz

December, 16, 2010 AT 11:01 PM

Check and test the throttle position and manifold absolute pressure sensors-also the EGR valve

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