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NHTSA ID Number: 10116599
Manufacturer Communication Number: 16-NA-173
Summary
This Technical Bulletin provides a procedure to bond the ceramic pins to the exhaust valves to correct a condition of a rattle noise from the rear of the vehicle.
2 Affected Products
Vehicle
| CHEVROLET | CAMARO | 2016-2017 |
Parts
| Loctite Quick Set Epoxy* | 1395391  | 1 |
| Loctite Fixmaster Poxy Pak* | EA9017 | 1 |
| J-B Weld Cold Weld Two-Part Epoxy | 8265-S | 1 |
SEOCONTENT-START
Bulletin No.: 16-NA-173
Date: Feb-2017
| Subject: | Exhaust Rattle Noise Originating from Rear of Vehicle |
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Chevrolet | Camaro | 2016 | 2017 | LT1 or LGX | All | ||
| Involved Region or Country | North America, Europe, Israel, Middle East, Korea |
| Additional Options (RPO) | Equipped with Performance Exhaust RPO NPP |
| Condition | Some customers may comment on an exhaust rattle originating from the rear of the vehicle. |
| Cause | This may be caused by the ceramic pin on the exhaust valve. |
Correction
If you encounter a vehicle with the above concern, complete the following steps to bond the ceramic pin to the valve:
Important: Do NOT replace the exhaust for this condition.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
- Let the vehicle’s exhaust system cool to room temperature.
- Using brake parts cleaner and a wire brush, clean the ceramic pins on the side of each valve.
- Lower the vehicle. Press and release the ignition mode switch to put the vehicle in the Accessory mode. The amber LED will illuminate once the correct mode has been achieved. From the home page of the radio, follow the path listed below to turn the vehicle’s Stealth mode on. Settings>Driving Mode>Engine Sound Management>Stealth
- Raise the vehicle back in the air and using a long Q-Tip taped to a long handled screwdriver, apply epoxy to the ceramic pin where it meets the exhaust valve.
Important: Do not apply epoxy to the exhaust pipe where the ceramic pin pivots. Doing so may cause the valve not to function as intended.
- Lower the vehicle back down and using the pathing listed in step 4, put the vehicle’s Engine Sound Management into Auto mode.
Important: Starting the vehicle may cause the epoxy not to cure as intended.
- Repeat Step 5 with the valves open (vehicle out of Stealth Mode).
Important: Do not apply epoxy to the exhaust pipe where the ceramic pins pivot. By doing this, the exhaust valves may not function as intended.
- Let the epoxy dry/cure for roughly an hour before restarting the vehicle.
Parts Information
Either of the products below can be used for this repair.
For additional information on Loctite™, contact www.Loctite.com or call in the U.S., 1-800-562-8483. In Canada, call 1-800-263-5043.
For additional information on J-B Weld, contact www.jbweld.com or call 1-903-885-7696.
| Description | Part Number | Qty |
| Loctite Quick Set Epoxy* | 1395391 |
1 |
| Loctite Fixmaster Poxy Pak* | EA9017 | 1 |
| J-B Weld Cold Weld Two-Part Epoxy | 8265-S |
1 |
*We believe this source and their products to be reliable. There may be additional manufacturers of such products/materials. General Motors does not endorse, indicate any preference for, or assume any responsibility for the products or material from this firm or for any such items that may be available from other sources. |
||
Warranty Information
| Labor Operation | Description | Labor Time |
| 4081238* | Applying Epoxy to Exhaust Valve Pins | 0.6 hr |
| *This is a unique Labor Operation for Bulletin use only. | ||
| Version | 3 |
| Modified | August 12, 2016 – Added 2017 Model Year and added an additional Epoxy that can be used in the repair.
Feb. 28, 2017 – Added the use of J-B Weld as an additional option of product to use. |
SEOCONTENT-END
Bulletin No.: 16-NA-173
Date: Feb-2017
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Bulletin No.: 16-NA-173
Date: August, 2016
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Bulletin No.: 16-NA-173
Date: June, 2016
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