Chevette L4-98 1.6L (1982)
Harmonic Balancer - Crankshaft Pulley: All Technical Service Bulletins
Campaign - Crankshaft Pulley Bolt
FEBRUARY 12, 1987
TO:
ALL CHEVROLET DCS DEALERS
SUBJECT:
CRANKSHAFT PULLEY BOLT - CAMPAIGN 84C27
MODEL AND YEAR:
1981-84 CHEVROLET CHEVETTE MODELS EQUIPPED WITH 1.6L GASOLINE ENGINE, AIR
CONDITIONING AND POWER STEERING
TO AVOID A POTENTIAL FOR THE CRANKSHAFT PULLEY BOLT TO FRACTURE ON 1981-84 CHEVRLET CHEVETTE MODELS
EQUIPPED WITH A 1.6L GASOLINE ENGINE, AIR CONDITIONING AND POWER STEERING, THE CRANKSHAFT PULLEY
ATTACHMENT ON THESE MODELS WILL BE REPLACED. A FRACTURE OF THE CRANKSHAFT PULLEY BOLT MAY ALLOW THE
ACCESSORY DRIVE PULLEY TO SEPARATE FROM THE CRANKSHAFT CAUSING A LOSS OF ENGINE POWER AND POWER STEERING
ASSIST.
IN ADDITION, GENERAL MOTORS IS OFFERING REIMBURSEMENT FOR OWNER INCURRED REPAIR EXPENSES DUE TO A
PREVIOUS PULLEY BOLT FRACTURE ON THESE SAME MODELS. ELIGIBILITY FOR REIMBURSEMENT IS DESCRIBED IN CAMPAIGN
BULLETIN 84C27. BOTH CURRENT AND ORIGINAL VEHICLE OWNERS WILL BE NOTIFIED OF THIS CAMPAIGN.
VIN BREAKPOINTS ARE AS FOLLOWS:
MODEL YEAR
PLANT
FROM
THROUGH
1981
LAKEWOOD
BA100001
BA269969
WILMINGTON
BY100001
BY363358
1982
LAKEWOOD
CA100001
CA175256-
WILMINGTON
CY100001
CY257357
1983
LAKEWOOD
(NO CHEVETTE PRODUCTION)
WILMINGTON
DY100001
CY269551
1984
LAKEWOOD
EA100001
EA172519
WILMINGTON
EY100005
EY271352
THE CRANKSHAFT PULLEY ATTACHMENT SERVICE KIT, PART NUMBER 10068524 REQUIRED TO PERFORM THIS CAMPAIGN
SHOULD BE ORDERED FROM GMSPO. ONE KIT IS NEEDED PER VEHICLE.
YOU WILL SHORTLY RECEIVE CAMPAIGN BULLETIN 84C27 ALONG WITH VIN LISTINGS. OWNER LETTER MAILING WILL OCCUR
ABOUT ONE WEEK AFTER BULLETIN MAILING TO DEALERS.