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International Automotive Technicians Network
1988 Chev/GMC Truck Suburban 7.4L Poor Idle Quality
Posted to GM Driveability on 3/21/2000

This vehicle came into our shop with customer complaint of high idle speed & surge at cruise. We have experience the high idle problem. This is what happens. When the engine is at normal operating temp. Idle speed is approx. 750rpm in park. When put into d...

 
Message Closed w/FIX

car Vehicle Data

1988 Chev/GMC Truck Suburban

VIN [No VIN Available]
Engine7.4 L / 8 cyl
EmissionsOBDI
SymptomsPoor Idle Quality
OccursHot
Message Closed w/FIX

car Vehicle Data

1988 Chev/GMC Truck Suburban

VIN [No VIN Available]
Engine7.4 L / 8 cyl
EmissionsOBDI
SymptomsPoor Idle Quality
OccursHot