GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1997
🢒
GMC P62 Commercial Chassis
🢒
Engine
🢒
Turbocharger
🢒 Lacks Power, No Black Smoke at WOT
Engine Lacks Power and Has No Black Smoke at Wide Open Throttle
Possible Cause
Correction
Insufficient fuel supply to the injection pump.
Refer to Engine Controls.
