Engine Controls - 7.4L for GMC Truck Yukon - 2WD 1998

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