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NHTSA ID Number: 10118983
Manufacturer Communication Number: PI1510A
Summary
This preliminary informational bulletin provides a procedure to replace both the front suspension mounts and cups to correct a condition of a popping noise from the fron of the vehicle when traveling over bumps due to the front strut mount being torn due to high underbody/underhood temps in addition to traveling over speed bumps.
6 Affected Products
Vehicles
Parts
| 2 | MOUNT ASM-FRT STRUT | 22918275  |
| 2 | CUP-FRT SUSP MT UPR | 23357885 |
| 2 | STOP-FRT SUSP STRUT BPR | 23321381 |
SEOCONTENT-START
#PI1510A: Popping Noise from Front of Vehicle When Traveling Over Bumps – (Sep 14, 2016)
| Subject: | Popping Noise from Front of Vehicle When Traveling Over Bumps |
| Models: | 2013-2015 Cadillac ATS |
| 2014-2015 Cadillac CTS (VIN A) |
|
| Attention: | This PI also applies to any of the above models that may be Export from North America vehicles. |
This PI has been revised to update the Parts Information. Please discard PI1510.
Condition/Concern
Some customers may comment on a popping noise when traveling over bumps.
This may be caused by the front strut mount being torn due to high underbody/underhood temps in addition to traveling over speed bumps.
Recommendation/Instructions
If you encounter a vehicle with the above concern, follow the procedure below:
- Remove and discard both the front suspension strut upper mounting caps (1).
- Inspect both front strut top mounts from inside cavity for tears.If damage has occurred to the front strut mount, replace the both strut mounts. Refer to Strut, Strut Component, or Spring Replacement in SI.
Note: The following parts (1) and (2) will not be present in vehicles that exhibit this condition. The following parts are the permanent corrective action to prevent the front strut mount from tearing.
- In addition to replacing the strut mounts, install both the front suspension strut mount upper rebound cups (2).
- Install both the front suspension strut mount rebound stops (1) and tighten to 25 Nm (18 lb ft).
Important: Tighten with the vehicle resting on the ground and ensure rebound stop is fully seated against the strut rod nut.
Parts Information
| Qty | Description | Part Number |
| 2 | MOUNT ASM-FRT STRUT | 22918275 |
| 2 | CUP-FRT SUSP MT UPR | 23357885 |
| 2 | STOP-FRT SUSP STRUT BPR | 23321381 |
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
| Labor Operation | Description | Labor Time |
| 8080178* | Front Suspension Upper Mounts Replacement and Installation of Cups and Stops | 2.2 hrs |
| *This is a unique Labor Operation for Bulletin use only. | ||
SEOCONTENT-END
Bulletin No.: PI1510A
Date: 14-Sep-2016
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Bulletin No.: PI1510
Date: Jul-2015
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