1992 Chevrolet GMC Truck 6.2L and 6.5L Diesel Fuel System Diagnosis

1992 Chevrolet GMC Truck 6.2L and 6.5L Diesel Fuel System Diagnosis

Contents:

Section 1- Diagnosis

Introduction

Diagnostic Worksheet

Glow Plug System Check

Diesel Engine Cranking System Speed Check

Shutdown Solenoid Check

Diagnosing Air in Fuel Lines

Fuel Specific Gravity Check

Fuel Delivery System Checks

Diesel Engine Compression Check

Injection Timing Adjustment

Mechanical Light Load Advance Check

Idle Speed Check and Adjustment

Fast Idle Speed Check and Adjustment

Housing Pressure Cold Advance Check

Injection Pump Housing Pressure Check

Defective Nozzle Check

Fuel Nozzle Line Inspection

Turbocharger

Turbocharger (Problem/Cause/Correction)

Turbocharger Inspection

Inspection of the Waste-gate Actuator Assembly

Boost Pressure Test

EGR Function Checks

Manual Test of EGR Valve

On-Vehicle Service

Inspection of EGR Valve

Air Cleaner Checks

Throttle Travel Check

Torque Converter Clutch Check

Vehicle Modifications

Odometer Check

Exhaust System Check

Section 2- Service €“ Diesel In-Chassis Injection Pump Repairs

Governor Cover Seal Replacement

Shutdown and Cold Advance Solenoid Replacement

Transfer Pump End Cap Locking Plate Seal Replacement

Side Cover Gasket Replacement

Appendix

Injection Pump Service Parts

Injection Pump Nomenclature Plate

Diagnostic Worksheet

Diagnostic Worksheet

Injection Pump Central Distributors

Special Tools