1999 GMC C6500 7.4L No Start, Poor Idle Quality, Surge, Stall, Misfire
Vehicle acts up mostly warm. Sometimes won't start, as you let off ignition switch sometimes will backfire. If it backfires let off switch and try again and will start. Have replaced all grounds. originally had no CEL with Ign. switch on and would only crank f...
FIX posted 12/19/2006
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Vehicle Data1999 GMC C6500
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Vehicle Data
1999 GMC C6500
VIN | 1GDJ7H1DXX |
Engine | 7.4 L / 8 cyl |
Delivery | FI / SFI |
Emissions | OBD-II Compliant |
Symptoms | No Start, Poor Idle Quality, Surge, Stall, Misfire |
Occurs | Intermittently |
Misc. | Ex Ryder Truck |