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NHTSA ID Number: 10137212
Manufacturer Communication Number: 15-NA-048
Summary
This technical bulletin provides repair information to correct a customer concern of a clunk noise originating from the underside of the vehicle upon acceleration.
7 Affected Products
Vehicle
CADILLAC | CTS | 2008-2014 |
Parts
| RETAINER ASM-PROP SHF FRT | 6 | 25797834  |
SEOCONTENT-START
| Subject: | Clunk Noise Under Vehicle When Accelerating |
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Cadillac |
CTS | 2008 | 2014 | All | All | ||
| Additional Options | Equipped with All Wheel Drive (RPO MX7) |
clunk noise originating from the underside of the vehicle upon acceleration.
This may be caused by a loss of clamp load at the joint that attaches the propshaft to the transfer case.
Correction
If you encounter a vehicle with the above concern, complete the following procedure:
- Raise and support the vehicle.
- With the vehicle in the air, visually inspect the propeller shaft CV joint to transfer case flange bolts for looseness.
- If any of the bolts are loose, continue to Step 3.
- If all the bolts look secure, continue with diagnosis referring to Service Information.
- If one or more of the bolts are visually loose, replace all six of the propeller shaft CV joint to transfer case flange bolts.
- When replacing the bolts, be sure to install and tighten in sequence (1–6) to 40 Nm (29 lb ft) as illustrated above.
Parts Information
| Description | Part Number | Qty |
| RETAINER ASM-PROP SHF FRT | 25797834 |
6 |
SEOCONTENT-END
Bulletin No.: 15-NA-048
Date: Nov-2015
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My car has like a weird noise