NHTSA ID Number: 10114829
Manufacturer Communication Number: PIP5442
Summary
This Preliminary Information communication provides information to the technician about vehicles that have an exhaust leak, noisy exhaust, or noise mid-vehicle. Technician will need to check for an unseated pipe to pipe mid-joint connection. Technician will need to install new exhaust band.
28 Affected Products
Vehicles
CADILLAC | ESCALADE | 2015-2017 |
| CADILLAC | ESCALADE ESV | 2015-2017 |
| CHEVROLET | SILVERADO | 2017 |
| CHEVROLET | SILVERADO 1500 | 2014 |
| CHEVROLET | SILVERADO 2500 | 2015-2016 |
| CHEVROLET | SUBURBAN | 2015-2017 |
| CHEVROLET | TAHOE | 2015-2017 |
| GMC | SIERRA | 2017 |
| GMC | SIERRA 1500 | 2014 |
| GMC | SIERRA 2500 | 2015-2016 |
| GMC | SIERRA DENALI | 2015-2016 |
| GMC | YUKON | 2015-2017 |
| GMC | YUKON XL | 2015-2017 |
Parts
| Clamp Asm (2.75-in) (4.3L, 5.3L) | 1 | 20779889
Sale
GM Genuine Parts 20779889 Exhaust Pipe Clamp
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API |
| Clamp Asm (3.5-in) (6.0L, 6.2L) | 1 | 20779890
General Motors 20779890, Exhaust Clamp
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API |
SEOCONTENT-START
Bulletin No.: PIP5442
Date: Nov-2016
| Subject: | Exhaust Leak, Noisy Exhaust, Rattle, Rumble and/or Noise Mid-Vehicle |
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Cadillac |
Escalade Models | 2015 | 2017 | SOP | Current | 6.2 L86 | All |
| Chevrolet |
Silverado 1500 | 2014 | 2017 | SOP | Current | 4.3L LV3 5.3L L83 6.2L L86 | All |
| Chevrolet |
Suburban, Tahoe | 2015 | 2017 | SOP | Current | 5.3L L83 | All |
| Chevrolet |
Suburban 3500 | 2016 | 2017 | SOP | Current | 6.0 L96 | All |
| GMC | Sierra 1500 | 2014 | 2017 | SOP | Current | 4.3L LV3 5.3L L83 6.2L L86 | All |
| GMC | Yukon Models | 2015 | 2017 | SOP | Current | 5.3L L83 6.2L L86 | All |
| Involved Region or Country | North America |
| Additional RPO/s: | N/A |
| Condition | Some customers may comment on an exhaust leak, noisy exhaust, or noise mid-vehicle. The noise may be described as a rattle or rumble. May be most noticeable on a cold start. |
| Cause | This condition may be caused by an unseated pipe to pipe mid-joint connection as seen below |
Correction
Note: Ensure that the pipe flares remain fully seated to each other while tightening the clamp.
- Remove and discard the exhaust band (Norma) clamp.
- Install and position a new exhaust band (Norma) clamp to the pipe joint.
- Firmly push and maintain the pipes together while tightening the exhaust band (Norma) clamp bolt.
Tighten the clamp bolt to 30 Nm (22 lb. ft.).
Note: After the clamp is installed, it does not need to be perpendicular to the pipe. It is acceptable to have a pipe to pipe or clamp angle.
- Confirm that the clamp edges (both sides and all the way around the clamp) are fully seated on the pipe.
- Run the engine and inspect the clamp joint to ensure there are no leaks and that the condition is corrected.
Parts Information
| Description | Part Number | Qty |
| Clamp Asm (2.75-in) (4.3L, 5.3L) | 20779889
Sale
GM Genuine Parts 20779889 Exhaust Pipe Clamp
Last update on 2026-07-01 / Affiliate links / Images from Amazon Product Advertising API |
1 |
| Clamp Asm (3.5-in) (6.0L, 6.2L) | 20779890
General Motors 20779890, Exhaust Clamp
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API |
1 |
Warranty Information
| Labor Operation | Description | Labor Time |
| 4050272 | Exhaust System Alignment | Use Published Labor Operation Time |
| Version | 1 |
| Modified |
SEOCONTENT-END
Bulletin No.: PIP5442
Date: Nov-2016
To View or Download this Document Click Here
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DNA MOTORING CBE-CS09-4853L-4DR Stainless Steel Cat Back Exhaust System [Compatible with 07-13 Silverado 1500/07-13 Sierra 1500 Crew/Extended Cab Short Bed]
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- WARRANTY: All items listed are 100% Brand new and come with a ONE-TIME REPLACEMENT lifetime warranty against manufacturing defects. The warranty does not cover shipping, labor, or any other charges, Damages due to shipping, installation, and incidental fees are non-refundable. Items that have been installed, and modified are non-returnable.
Last update on 2026-06-22 / Affiliate links / Images from Amazon Product Advertising API
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