Sable V6-182 3.0L (1986)
Technical Service Bulletin # 021987
Date: 870119
Engine Piston - Knock/Scuff Condition
Number:
021987
Februrary 19, 1987
All Ford and Lincoln Mercury Dealers
Subject:
Piston Knock/Scuff Condition During Vehicle Warranty - 1986-87 Taurus/Sable/Aerostar Equipped with a 3.0L Engine
Important Service Information! Please Forward To Your Service Manager Immediately!
Some reports of piston knocking are being received on 1986 and 1987 model Taurus and Aerostar vehicles equipped with a 3.0L engine from dealers on
the Engine Concern Definition Program. The piston related knock is the result of piston scuffing.
If the knock condition is verified after conducting the diagnostic test outlined in the attached procedure, the engine assembly should be replaced rather
than attempt normal service repairs. This will assure complete customer satisfaction to the customer upon his service visit. Vehicles are to be serviced
within the guidelines of the new vehicle warranty.
Replacement engines can be obtained by calling the Lima Engine Plant toll free phone number. Diagnostic and warranty procedures are included in
Attachment I.
Call your Ford Parts and Service District Office if any difficulties are encountered with this program.
Forward this information to your Service Manager immediately!
Diagnostic/Repair Procedure (Attachment I)
DIAGNOSTIC/REPAIR PROCEDURE (Attachment I) (Page 1 of 5)
1.
DIAGNOSTIC PROCEDURE
The piston knock concern is most evident when the engine is first started and the engine is cold. The noise is similar to collapsed tappet and diminishes
as the engine warms up. Shorting out the spark plug at the affected cylinder reduces or eliminates the knock. This can be done by momentarily removing
the spark plug wire one cylinder at a time from either the distributor cap or at the spark plug.
2.
Plant Contact
The Service Manager should contact the Lima Engine Plant to make arrangements for the engine assembly exchange and receive a prior work approval
number. Personnel at the plant will be available to answer telephones from 8 a.m. to 8 p.m. Eastern standard time each weekday. Occasionally you may
receive a recorded phone message when the phone lines are temporarily busy. You will be asked to leave your name and phone number and your call will
be returned within fifteen minutes.
All Area 419 Dealers
226-7119
All Ohio Dealers
1-800-472-5262
All Other Dealers
1-800-537-2830
Engine Plant Contact:
Jerry Klosterman
Provide the plant representative with the following information:
^
Dealer name, address, and telephone number.
^
Dealer P&A code.
