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2002 GMC C6500 8.1L Poor Idle Quality, Hesitation, Stall
Posted to GM Driveability on 1/16/2007 3 Replies

This tow truck has an 8.1L engine which stalls and backfires when cold. It also has low power when cold. It runs ok when warm but still has some loss of power even when warm. I supect low fuel pressure but we don't have the fuel pressure specs. Any help would ...

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Message Closed w/FIX

car Vehicle Data

2002 GMC C6500

VIN 1GXG6H1E82
Engine8.1 L / 8 cyl
DeliveryFI / sefi
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Stall
OccursCold
Misc.Tow Truck
Message Closed w/FIX

car Vehicle Data

2002 GMC C6500

VIN 1GXG6H1E82
Engine8.1 L / 8 cyl
DeliveryFI / sefi
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Stall
OccursCold
Misc.Tow Truck