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NHTSA ID Number: 10078871
Manufacturer Communication Number: PIP-4554-M
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH THE STEPS ON REPAIRING A CLUNK NOISE AFTER SHIFTING FROM REVERSE TO DRIVE OR DRIVE TO REVERSE AND THEN ACCELERATING. THE CONCERN IS ONLY WITH REAR WHEEL DRIVE 6L45 OR 6L50 AUTOMATIC TRANSMISSIONS WITH REGULAR PRODUCTION OPTION CODE MYA OR MYB APPLY. APPLY THREAD LOCKER TO THE TRANSMISSION OUTPUT SHAFT FLANGE SPLINES AND INSTALL A NEW FRONT PROPELLER SHAFT FLANGE NUT. APPLY THREAD LOCKER TO THE NEW PROPELLER SHAFT FLANGE NUT IF IT DOES NOT CONTAIN A PRE-APPLIED ADHESIVE PATCH.
Condition/Concern
Clunk noise after shifting from Reverse to Drive or Drive to Reverse and then accelerating.
This noise typically does not occur during the reverse to drive or drive to reverse shift, but is heard after the shift when the vehicle is accelerated. The noise may sound like it is coming from the rear of the vehicle from the rear drive axle.
Driveline bump, clunk or thud on heavy acceleration or upon braking. This condition is more likely to be duplicated in low gear on acceleration or deceleration.
Parts
| Part Number | Description | QTY |
89021297  |
Adhesive/Sealant, Thread locker High Strength 10 ml – (US) | 1 |
| 10953488 | Adhesive/Sealant, Thread locker High Strength 10 ml – (Canada) | 1 |
| 24256278 |
Nut, Front Propeller Shaft Flange | 1 |
21 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CADILLAC | CTS | 2008-2014 |
| CADILLAC | SRX | 2007-2009 |
| CADILLAC | STS | 2007-2011 |
| CHEVROLET | CAMARO | 2010-2015 |
1 Associated Document
Service Bulletin Document
Bulletin No.: PIP4554M
Date: May-2016
https://www.nhtsa.gov/recalls?nhtsaId=10078871
SB-10078871-7690.pdf 133.277KB
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NHTSA ID Number: 10114379
Manufacturer Communication Number: PIP4554L
Summary
This Preliminary Information communication provides the technician with the steps on repairing a clunk noise after shifting from reverse to drive or drive to reverse and then accelerating. The concern is only with rear wheel drive 6L45 or 6L50 automatic transmissions with Regular Production Option Code MYA or MYB apply. Apply thread locker to the transmission output shaft flange splines and install a new front propeller shaft flange nut. Apply thread locker to the new propeller shaft flange nut if it does not contain a pre-applied adhesive patch.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP4554L
Date: Feb-2015
https://www.nhtsa.gov/recalls?nhtsaId=10114379
MC-10114379-9999.pdf 134.225KB
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NHTSA ID Number: 10125941
Manufacturer Communication Number: PIP4554K
Summary
This Preliminary Information communication provides the technician with the steps on repairing a clunk noise after shifting from reverse to drive or drive to reverse and then accelerating. The concern is only with rear wheel drive 6L45 or 6L50 automatic transmissions with Regular Production Option Code MYA or MYB apply. Apply thread locker to the transmission output shaft flange splines and install a new front propeller shaft flange nut. Apply thread locker to the new propeller shaft flange nut if it does not contain a pre-applied adhesive patch.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP4554K
Date: Jun-2014
https://www.nhtsa.gov/recalls?nhtsaId=10125941
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NHTSA ID Number: 10069496
Manufacturer Communication Number: PIP4554K
Summary
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1 Associated Document
Service Bulletin Document
Bulletin No.: PIP4554K
Date: June, 2014
https://www.nhtsa.gov/recalls?nhtsaId=10069496
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NHTSA ID Number: 10111917
Manufacturer Communication Number: PIP4554J
Summary
This Preliminary Information communication provides the technician with the steps on repairing a clunk noise after shifting from reverse to drive or drive to reverse and then accelerating. The concern is only with rear wheel drive 6L45 or 6L50 automatic transmissions with Regular Production Option Code MYA or MYB apply. Apply thread locker to the transmission output shaft flange splines and install a new front propeller shaft flange nut. Apply thread locker to the new propeller shaft flange nut if it does not contain a pre-applied adhesive patch.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP4554J
Date: Feb-2014
https://www.nhtsa.gov/recalls?nhtsaId=10111917
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NHTSA ID Number: 10069495
Manufacturer Communication Number: PIP4554J
Summary
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1 Associated Document
Service Bulletin Document
Bulletin No.: PIP4554J
Date: February, 2014
https://www.nhtsa.gov/recalls?nhtsaId=10069495
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NHTSA ID Number: 10112593
Manufacturer Communication Number: PIP4554H
Summary
This Preliminary Information communication provides the technician with the steps on repairing a clunk noise after shifting from reverse to drive or drive to reverse and then accelerating. The concern is only with rear wheel drive 6L45 or 6L50 automatic transmissions with Regular Production Option Code MYA or MYB apply. Apply thread locker to the transmission output shaft flange splines and install a new front propeller shaft flange nut. Apply thread locker to the new propeller shaft flange nut if it does not contain a pre-applied adhesive patch.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP4554H
Date: Nov-2012
https://www.nhtsa.gov/recalls?nhtsaId=10112593
MC-10112593-9999.pdf 133.388KB
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NHTSA ID Number: 10061426
Manufacturer Communication Number: SB-PIP-4554-G
https://www.nhtsa.gov/recalls?nhtsaId=10061426
| “This site contains affiliate links for which OEMDTC may be compensated” |
- Value 2 Pack Threadlocker: Medium-strength blue Threadlocker 242 and High-strength red Threadlocker 271, providing a wide range of options for your various needs. 2 x 50ml bottles of thread locker are easy to store and can be used for a long time without drying out or leaking.
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Last update on 2024-06-30 / Affiliate links / Images from Amazon Product Advertising API
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SEOCONTENT-START
Bulletin No.: PIP4554M Date: May-2016 Subject: Clunk Noise After Shifting From Reverse To Drive Or Drive To Reverse And Then Accelerating Models: 2007-2009 Cadillac SRX 2007-2011 Cadillac STS 2008-2014 Cadillac CTS 2010-2015 Chevrolet Camaro RWD only, equipped with 6L45 or 6L50 (RPO MYA, MYB) Automatic Transmission This PI was superseded to update Model Years. Please discard PIP4554L. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern Some customers may comment on a clunk noise after shifting from Reverse to Drive or Drive to Reverse and then accelerating. This noise typically does not occur during the reverse to drive or drive to reverse shift, but is heard after the shift when the vehicle is accelerated. The noise may sound like it is coming from the rear of the vehicle from the rear drive axle. Customers may also comment on a driveline bump, clunk or thud on heavy acceleration or upon braking. This condition is more likely to be duplicated in low gear on acceleration or deceleration. Recommendation/Instructions This condition may be caused by the torque on the propeller shaft flange nut or movement between the flange and the transmission output shaft. Apply thread locker to the transmission output shaft flange splines and a new front propeller shaft flange nut following the procedure below. The existing output shaft and output shaft flange can be re-used and does not require replacement. A new front propeller shaft flange nut should be used. Callout 1 Component Name: Propeller Shaft Transmission Flange Procedure 1. The output shaft flange splines must be thoroughly clean and dry before installing the flange. 1 Note: When repairing low speed and garage shift clunk – except for moving the vehicle from the hoist, do not operate the vehicle above 5 mph at light throttle for 24 hours to allow the adhesive to cure. 2. Apply GM P/N 89021297 (Canadian P/N 10953488) evenly across the width and length of the flange splines and install the flange onto the transmission output shaft. 3. Sufficient application of adhesive to every tooth on the flange will leave excess adhesive on the output shaft after installation. If no excess is observed, reapply adhesive. Remove excess adhesive. Callout 2 Component Name: NEW Front Propeller Shaft Flange Nut Procedure 1. The output shaft nut threads must be thoroughly clean and dry before installing the nut. 2. Apply GM P/N 89021297 (Canadian P/N 10953488) across the width of the nut threads, prior to tightening and staking. Note: If the replacement nut contains a pre-applied adhesive patch, then liquid adhesive is not required. Caution: Refer to Fastener Caution in the Preface section. Tighten 55 N·m (41 lb ft). Special Tool J 45012 Holding Fixture For equivalent regional tools, refer to Special Tools. Callout 3 Component Name: Output Shaft Caution: Stake the flange nut onto the output shaft. Use the two staking grooves on the shaft to locate the staking points. Failure to stake the flange nut may result in damage to the transmission. Parts Information Part Number Description QTY 89021297 (US) Adhesive/Sealant, Thread locker High Strength 10 ml 1 10953488 (Canada) Adhesive/Sealant, Thread locker High Strength 10 ml 1 24256278 Nut, Front Propeller Shaft Flange 1 Warranty Information For vehicles repaired under warranty use: Labor Operation Description Labor Time 8480078* Replace Propeller Shaft Flange Nut, Clean and Apply Thread Locker to Flange Splines and Nut 1.5 hr * This is an unique labor operation for bulletin use only. This will not be published in the Labor Time Guide. Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
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