TSB clunk noise after shifting frm reverse to drive or drive to reverse then acceler

[BumbleBeeBowtie13]

TSB #PIP4554J: includes '10-'13 Camaro with 6L45 or 6L50 (RPO MYA, MYB) auto tranmissions..

clunk may sound like it is coming from rear of vehicle from rear drive axle.. may sound like driveline bump, clunk or thud on heavy acceleration or upon braking..

May be caused by torque on propeller shaft flange nut or movement between flange and transmission output shaft..

[Angrybird 12]

Originally Posted by BumbleBeeBowtie13

TSB #PIP4554J: includes '10-'13 Camaro with 6L45 or 6L50 (RPO MYA, MYB) auto tranmissions..

clunk may sound like it is coming from rear of vehicle from rear drive axle.. may sound like driveline bump, clunk or thud on heavy acceleration or upon braking..

May be caused by torque on propeller shaft flange nut or movement between flange and transmission output shaft..

That is both the V6 and V8 auto? I am not up on the number designations.
My 12 V6 has never had that issue yet.

[BumbleBeeBowtie13]

Mine is V6.. I'm unsure if this applies to V8 models as well.. I heard clunk from day 1 (100 miles on car when I purchased).. had clunk checked yesterday at dealership with first oil change appt..

[moE_09]

What did the dealer say?ive has this same thing since day one but never thought of it as an issue ?

[Squibcakes]

Maybe bad U-joints? I had that happen on a different car in the past.

[BumbleBeeBowtie13]

i mentioned it to a few men who are amazing mechanics and they assured me it was fine, it was a new car after all.. it didn't sound fine to me.. the tech's at the dealership yesterday heard it and said it shouldn't clunk.. they went online and found this TSB concerning this exact issue.. I picked my car up today, clunk is gone..

[BumbleBeeBowtie13]

Originally Posted by moE_09

What did the dealer say?ive has this same thing since day one but never thought of it as an issue ?

From copy of dealership TSB given me yesterday:

"TSB #PIP4554J: includes '10-'13 Camaro with 6L45 or 6L50 (RPO MYA, MYB) auto tranmissions..

clunk may sound like it is coming from rear of vehicle from rear drive axle.. may sound like driveline bump, clunk or thud on heavy acceleration or upon braking..

May be caused by torque on propeller shaft flange nut or movement between flange and transmission output shaft.."

[moE_09]

I wonder if that will cover me bc I have a '14. Pretty sure all parts are the same so it should. Only one way to find out though

[BumbleBeeBowtie13]

you have the TSB # above to refer to when you contact the dealership.. would be interested to hear your diagnostic.. good luck!

[serows1]

#PIP4554J: Clunk Noise After Shifting From Reverse To Drive Or Drive To Reverse And Then Accelerating - (Feb 11, 2014)
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 2008-2013 Cadillac CTS 2010-2013 Chevrolet Camaro RWD only, equipped with 6L45 or 6L50 (RPO MYA, MYB) Automatic Transmission This PI was superseded to update model years. Please discard PIP4554H.
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. 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.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

[BumbleBeeBowtie13]

TY serows1.. I noticed most forum threads/posts are minimal, therefore unsure if appropriate to post entire TSB or provide pertinent details I would look for, along with TSB number as reference for optional further investigation.. now I know

[Arksine]

Originally Posted by BumbleBeeBowtie13

Mine is V6.. I'm unsure if this applies to V8 models as well.. I heard clunk from day 1 (100 miles on car when I purchased).. had clunk checked yesterday at dealership with first oil change appt..

V8 is equipped with the 6L80E auto, so it this shouldn't affect SS owners.

[serows1]

Originally Posted by BumbleBeeBowtie13

TY serows1.. I noticed most forum threads/posts are minimal, therefore unsure if appropriate to post entire TSB or provide pertinent details I would look for, along with TSB number as reference for optional further investigation.. now I know

It's no trouble, I just hope it helps..

Paul

[Diesel22]

See this say 2010-13 I have a 2014 1lt and it to has a clunk when put into reverse, would this be an ongoing problem?