GMC Suburban Engine Idle Erratic

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Problem Idle On A 99K1500 Suburban

1999 GMC SUBURBAN

I Have An Idle Issue With My 99 K1500 Suburban, New Fuel Filter, New Plugs, New Wires, Cleaned The Mass O Sensor, Looking At The Cap And...

1 ANSWER

Asked by Johnmneibel

1999 GMC SUBURBAN

I Recently Had My Engine Overhauled, Changed Oil After 500 Mls. Started Idling In Drive At Stop Lights Etc... At 400 To 800 Rpm. Truck...

1 ANSWER

Asked by Cprevo

1997 GMC SUBURBAN

I Have 2 Problems 1- While Car Neutral, And The Engine Running, The Rpm Gose Up And Down Till The Engine Turned Off. 2- The Revers...

1 ANSWER

Asked by sultans

1991 GMC SUBURBAN

I Am In The Process Of Re-building A 1990 Gmc R2500 Suburban. We Bought A Re-manufactured 454 Crate Motor And Installed New Accessories...

1 ANSWER

Asked by Andy33

1991 GMC SUBURBAN

The Idle Goes Up And Down. When I Unplug The Map Sensor It Stops Idling Up And Down. I Replaced Map Sensor ,problem Didnt Change. Dont Know...

1 ANSWER

Asked by shaniac

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