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Bulletin No: 01-021/02

Last Issued: 08/06/2002

Subject:
PINGING NOISE DURING HARD ACCELERATION AT 4000-5500 RPM

APPLICABLE MODEL(S)/VINs
2001 Tribute 3.0L

DESCRIPTION
Some 3.0L engine vehicles may exhibit engine pinging during hard acceleration (full throttle) from 4000-5500 RPM while driving at high speed and with low ambient temperature. This is due to an improper PCM calibration.

Customers having this concern should have their vehicle repaired using the following procedure.

REPAIR PROCEDURE
1. Verify concern.

2. Follow Service Bulletin 01-017102 "HESITATION ON ACCELERATION AFTER COLD START AND DURING WARM UP" for the
complete reprogramming procedure.
- If the tear tag number on the current PCM label is JYB1, JYB2 or JYB3, replace the PCM. See S/B 01-017/02 for the complete reprogramming procedure after replacing the PCM. Then proceed to STEP 3.
- If during this procedure, the PCM Cal. P/N is currently at 1U7A-12A650-AYB, then this PCM has already been reflashed to the revised level. DO NOT CONTINUE WITH REPAIR PROCEDURE OF THE S/B 01-017/02. Perform normal diagnostics in the Workshop Manual under "Symptom Troubleshooting".

3. Install revised PCM calibration sticker in appropriate position (next to vehicle emissions label) with the calibration P/N provided in CALIBRATION INFORMATION.

4. Verify repair.

CALIBRATION INFORMATION
Application​
PCM Tear Tag​
PCM Calibration P/N​
File Name​
2001 Tribute 3.0L​
JYB1, JYB2, JYB3
(MPC-160 Level)​
Must replace PCM with MPC-161 level PCM (AJ08-18-881F) and then re-flash to latest calibration 1U7A-12A650-AYB​
DOAR3C5​
2001 Tribute 3.0L​
SJC0, SJC1, SJC2
(MPC-161 Level)​
Reprogram PCM to latest calibration 1U7A-12A650-AYB​
DOAR3C5​
NOTE:
WDS shows (the calibration part number) after programming the PCM.

PART(S) INFORMATION
Part Number
Description
Qty.
Notes
AJ08-18-1881F​
PCM​
1​
For PCM with tear tags JYB1, JYB2, JYB3 (MPC-160 Level)​
9999-95-AMDC 97​
PCM Calibration Sticker​
1​
Available through MStore​
WARRANTY INFORMATION
Warranty Type
A​
Symptom Code
11​
Damage Code
9W​
Part Number Main Cause
****-18-881​
Quantity
0 or 1​
Operation Number / Labor Hours:
YY282XRX / 0.5 (Reprogram PCM)
YY293XTX / 0.7 (Replace and reprogram PCM)​
Note:
This information applies to verified customer complaints on vehicles covered under normal warranty. Refer to the SRT microfiche for warranty term information.
 
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