GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1998
🢒
Yukon - 4WD
🢒
Engine
🢒 Engine Controls - 7.4L
Engine
All Description and Operation
Long Term Fuel Trim Description
Short Term Fuel Trim Description
Speed Density System Description
Vehicle Control Module Description
All Special Tools and Equipment
Special Tools
Diagnostic Procedures
Crankcase Ventilation System Diagnosis
Poor Fuel Fill Quality
Electrical/Electronic Specifications
Temperature Versus Resistance
Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
Diagnostic Trouble Code (DTC) List
Engine Scan Tool Data Definitions
GM SPO Group Numbers
Removal, Installation, and Replacement
Filler Tube Replacement
Fuel Hose/Pipes Assembly Replacement
Fuel Pressure Relief
Fuel Pressure Service Valve Replacement
Fuel Pump Relay Replacement
Fuel Tank Draining
Fuel Tank Replacement
Metal Collar Quick Connect Fitting Service
Plastic Collar Quick Connect Fitting Service