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
GM Genuine Parts 20779889 Exhaust Pipe Clamp
Last update on 2026-06-17 / 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 2026-06-10 / 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
GM Genuine Parts 20779889 Exhaust Pipe Clamp
Last update on 2026-06-17 / 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 2026-06-10 / 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
Bestseller No. 1
Auto Dynasty 4 Inches Rolled Muffler Tip Catback Exhaust System Compatible with 2007-2013 Silverado Sierra 1500 Crew/Extended Cab Short Bed, Stainless Steel
- Vehicle Compatibility - This cat-back exhaust is compatible with 2007-2013 Chevy
Silverado 1500 Crew/Extended Cab Short Bed, 2007-2013 GMC Sierra 1500 Crew/Extended Cab Short Bed - Brilliant Performance - Come with [1] high performance racing design exit cat-back exhaust kit, can increase 15 to 25 horsepower instantly or low end torque and maximize to enhance the exhaust gas flow without sacrificing the aggressive tone sound in the smooth conditions.
- Extraordinary Quality - It is constructed of high quality aluminized steel with computerized mandrel-bends for the strength and durability, and the TIG welded CNC machine can resistant against pressure and corrosion.
- Simple Installation - Easy for the installation, make you enjoy the best performance in the fastest time.
- Product Specification - Major Piping: 3" OD | Inlet: 3" OD | Muffler Tip Type: Round | 4" OD Round Diagonal Cut Muffler Tip
Bestseller No. 2
Bestseller No. 4
Rough Country Dual Cat-Back Exhaust for 19-24 Chevy/GMC Sierra |5.3L - 96011
- Dual Cat Back Design with Rear Exit.
- Corrosion Resistant 409 Stainless Steel | 16 Gauge Tubing | 409 Stainless Black Muffler and Clamps.
- Dual Wall Stainless Steel 304 Black Tips | Can Retain your OEM Dual Tips.
- Installs into OEM Hangers | No Welding | Easy at Home Installation.
- Backed by Rough Country's Limited Lifetime Replacement Warranty.
Bestseller No. 5
![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]](https://m.media-amazon.com/images/I/41UreDyap1L.jpg "Exhaust Leak, Noisy Exhaust, Rattle, Rumble and/or Noise Mid-Vehicle - 2014-2017 Cadillac Chevrolet & GMC 7")
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]
- 【FITMENT】Compatible with 07-13 Chevy Silverado 1500 Crew/Extended Cab Short Bed; Compatible with 07-13 GMC Sierra 1500 Crew/Extended Cab Short Bed
- 【Quality Construction】Made of High Quality T-409 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability. TIG welded CNC machine flange for resistance against pressure and corrosion.
- 【Enhance Performence】Dyno proven to instantly increases 15 - 25 horsepower / low end torque. Aggressive deep and smooth tone while ensures smooth exhaust gas flow, increase engine output and efficiency.
- 【Muffler & Diameter】2. 5" OD / 3" OD / Louvered Core Muffler
- 【Design】The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make stunned effect on your vehicle: lower auto exhaust back pressure and a much better sound.
Last update on 2026-05-23 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.