Engine - Knock At High Intake Air Temperatures

Bulletin No.: 009/96
Issued: 04/18/96
Revised:

Category
F

Applicable Model/s
1995-96 Protege

Subject
ENGINE KNOCK AT HIGH INTAKE AIR TEMPERATURES

APPLICABLE MODELS/VINS

1995-96 Protege with Z5 engine, manual transmission and a VIN of JM1BB****T0321 503 and lower. (Except California)

1995-96 Protege with Z5 engine, automatic transmission and a VIN of JM1BB****T0322396 and lower. (Except California)

1995-96 Protege with Z5 engine, manual transmission and a VIN of JM1BB****T0321 039 and lower. (California)

1995-96 Protege with Z5 engine, automatic transmission and a VIN of JM1BB****T0322396 and lower. (California)

DESCRIPTION

Engine knock may occur when the intake air temperature is high This concern may be most noticeable during acceleration when the vehicle is parked (for approximately 5 - 15 minutes) after high speed (freeway) driving.

This concern is caused by the PCM (Powertrain Control Module) logic. The logic for the ignition timing has been changed to reduce this concern. This PCM is available as a service part for affected regions.

Customers complaining of this concern should have the vehicle inspected and it necessary, the PCM replaced with the service part (for 1995 Protege vehicles) or modified part (for 1996 Protege vehicles) Refer to the Parts Information for accurate part ordering.





PARTS INFORMATION (for 1995 Protege)





PARTS INFORMATION (for 1996 Protege)

WARRANTY IN FORMATION

(Applies To Verified Customer Complaints On Vehicles Covered Under Normal Warranty. Refer To The SRT Microfiche For Warranty Term Application)

Warranty Type: A
Symptom Code: 11
Damage Code: 9W
Part Number Main Cause: Refer To Parts Information
Operation Number: F0812XRX
Labor Hours: 0.5 Hrs.