GMC C1500 Engine Idle High

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7 discussions

My Engine Is Idling Too Fast?

2000 GMC C1500
Engine Idles At 600 Rpm When Cold But As The Engine Gets Hotter The High Idle Increases To About 1500 Rpm. A Related Problem May Be That The...
18 ANSWERS
2 IMAGES
Asked by camman

1998 GMC C1500 Idles High Then Shuts Off

1998 GMC C1500
Turns On Ides High And Then You Have To Hold The Gas Down A Lil To Keep It Running Let Go Of Gas N It Dies
1 ANSWER
Asked by mytoys69

1989 GMC C1500 Rev Up Down No Power???

1989 GMC C1500
I Cant Figure Out Revs Up Down No Power Will Rev But While Driving Has No Power, Wants To Die With Little Gas Like An Dead Spot But Will...
1 ANSWER
Asked by tom250

1989 GMC C1500 Suburban Warms, Idle Speed Gets High &...

1989 GMC C1500
My 1989 Suburban 350 Engine Starts Fine Then After A Few Mins Idling The Engine Idle Speed Picks Up And Then Dies Like It Flooded/ran Too...
1 ANSWER
Asked by ppyrz

High Idle In Park And Neutral

1988 GMC C1500
Just Purchased The Truck Listed Above With A 305, Engine Idles High In Park And Neutral. Normal Idle When In Drive And Reverse. I Have Not...
3 ANSWERS
Asked by Benomi84

1986 GMC C1500 High Idle

1986 GMC C1500
I Put A 350ci Engine From A 1986 Blazer In A 1986 (11/1985) 2 Wheel Drive Heavy Half. I Have A High Idle Problem, Think It's The Carborator...
1 ANSWER
Asked by David1924

88 GMC SIERRA 1500, 90K MILES

GMC C1500
A Mechanic Said My Truck Was Idling High. My Question Is, How Can I Adjust This? Can I Do It Myself Or Do I Have To Go To A Shop? I'd Rather...
1 ANSWER
Asked by 88GMC1500

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