G 30 1 Ton Van V8-379 6.2L DSL VIN J FI (1984)
Diesel MFI Pump: All Technical Service Bulletins
Diesel Engine/Fuel System - Checklist/Diagnostic Charts
Number:
84-131
Section:
6C (VI)
Date:
May, 1984
Subject:
ENGINE AND FUEL SYSTEM CHECKLIST AND DIAGNOSTIC CHARTS - 6.2L DIESEL ENGINE
Model and Year: 1982-84 "C", "K", AND "P" TRUCK
AND 1983-84 "G" VAN
TO:
ALL CHEVROLET DEALERS
The following checklist and diagnostic charts are provided as an aid to technicians for servicing the 6.2L diesel engine. Before
removing the fuel injection pump from the engine, the Automotive Diesel Diagnostic Checklist should be completed. A copy of the
checklist should accompany the pump when sent for repairs.
AUTOMOTIVE DIESEL DIAGNOSTIC CHECKLIST
Dealer Name_____________________________
Tel. No_________________________
Date_____________________________
Vehicle Make/Model__________________________
VIN_____________________________ Mileage
Vehicle Technician's Name__________________________________________________________
Pump Model No._____________________________
Serial No_____________________________
The following checks are to be performed by the vehicle service technician prior to removing the pump from the engine repairs to assure proper service an
ENGINE CONDITION
Perform Diagnostic Checks in the Numerical Order Indicated After Each "Engine Condition"
[] Engine Will Not Start 1, 2, 12, 3, 5, 7, 4
[] White Exhaust Smoke 17, 6, 8, 3, 11, 10, 4
[] Engine Starts Hard, 1, 3, 12, 5, 6, 7, 10, 4
[] Engine Stalls 5, 11, 15, 12, 16
[] Rough Idle 5, 7, 3, 11, 8, 16, 10, 4
[] Lack of Power 13, 9, 8, 6, 11, 14, 10
[] Engine Misfires or Runs Rough 5, 8, 6, 11, 10, 7, 16, 12
[] Poor Fuel Economy 9, 8, 6, 11, 14, 10
[] Black Exhaust Smoke 9, 8, 6, 14, 10, 4
[] Fuel Leak (See Illustrations Below)
DIAGNOSTIC CHECKS
Prior to performing any diagnostic checks, ensure that vehicle
Yes No
has sufficient clean, quality fuel in tank. Collect a sample of
[] [] Fuel OK
fuel in a clear container and visually examine for cloudiness,
solid particles or water contamination.
Yes No
Yes No
[] [] 1. Cranking Speed OK_____
[] [] 10. Nozzles Test OK on Pop Tester (Especially Seat
RPM___Cold RPM____Hot
Leakage and Opening Pressure)______
[] [] 2. Fuel Shutoff Solenoid OK
[] [] 11. Pump Housing Pressure OK (Note 3)
[] [] 3. Glow Plugs Operational
Pressure____ per Maximum
[] [] 4. Compression Checked
[] [] 12. Adequate Fuel Supply (Note 4)
[] [] 5. Return Fuel Free of Air Bubbles
Pressure____per Volume____pints
[] [] 6. Timing OK (Note 1)
[] [] 13. Full Throttle Travel
[] [] 7. Lines Bled
[] [] 14. EGR/EPR Valves Functioning
[] [] 8. Advance Functioning (Note 2)
[] [] 15. Continuous Voltage to Shutoff Solenoid
[] [] 9. Air Cleaner OK
[] [] 16. Governor Flex. Ring Intact
[] [] 17. HPCA Solenoid Functioning
If Pump is Sent to Stanadyne Repair Agency Specify Type of Repair Requested____________________________________