buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

All Other Service Bulletins for Diesel MFI Pump: > < All Technical Service Bulletins for Diesel MFI Pump:|856C9|Page 1156
Page 1
background image

Diesel MFI Pump: All Technical Service Bulletins
Injection Pump Fuel Shut Off Solenoids - Inoperative

Model Year 1983

Bulletin No. 83-171

File In Group 60

Number

42

Date

Aug. '83

SUBJECT:

DIESEL INJECTION PUMP FUEL SHUT OFF SOLENOID

MODELS AFFECTED:

ALL EQUIPPED WITH 5.7L AND 4.3L DIESEL ENGINES

Examination of inoperative diesel injection pump fuel shut off solenoids reveals that a large percentage of this condition is caused by an accumulation of
metal particles on the operating mechanism. The magnetic effect of the solenoid causes this accumulation. Before replacing any solenoids, blow off the
debris with compressed air and check for proper operation by applying 12 volts to the terminal and grounding the cover.

All Other Service Bulletins for Diesel MFI Pump: > < All Technical Service Bulletins for Diesel MFI Pump:|856C9|Page 1156