NHTSA ID Number: 10080685
Manufacturer Communication Number: PIP5277B
Summary
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT HAVE A RESONANCE TYPE VIBRATION OCCURS BETWEEN 40 TO 60 MPH. IN MOST CASES THE ENGINE MUST BE UNDER A SLIGHT LOAD SUCH AS A/C COMPRESSOR ENGAGEMENT, LIGHT THROTTLE, AND IN 6TH GEAR TORQUE CONVERTER CLUTCH APPLIED. TECHNICIAN WILL RELAX THE ENGINE AND TRANSMISSION MOUNTS, THEN THE EXHAUST SYSTEM BY LOOSENING THE FRONT PIPE STUDS. ALSO WORK DOWN THE SYSTEM DISCONNECTING ONE EXHAUST HANGER AT A TIME. THEN TAKE THE VEHICLE ON A TEST DRIVE TO VERIFY THERE WAS IMPROVEMENT. IF ADDITIONAL STEPS ARE REQUIRED PLACE TWO SETS OF EXHAUST DAMPENERS ONE SET BEFORE AND ONE SET AFTER THE FRONT CATALYTIC CONVERTER. IT MAY BE REQUIRED TO MOVE THE PAIR OF DAMPENERS ALONG THE EXHAUST SYSTEM TO GET THE BEST RESULTS.
16 Affected Products
Vehicles
Condition/Concern
Resonance type vibration occurs between 40 to 60 MPH.
In most cases the engine must be under a slight load such as A/C compressor engagement, light throttle, and in 6th gear tcc applied.
It also is described as a 2nd order engine boom or vibration. In most cases this is an inherent condition on 4 cylinder models, however in some cases this condition is much more amplified.
1 Associated Document
Service Bulletin Document
Bulletin No.: PIP5277B
Date: Jun-2016
SB-10080685-2280.pdf 292.633KB
NHTSA ID Number: 10115122
Manufacturer Communication Number: PIP5277A
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have a resonance type vibration occurs between 40 to 60 MPH. In most cases the engine must be under a slight load such as Air Conditioning compressor engagement, light throttle, and in 6th gear Torque Converter Clutch applied. Technician will relax the engine and transmission mounts, then the exhaust system by loosening the front pipe studs. Also work down the system disconnecting one exhaust hanger at a time. Then take the vehicle on a test drive to verify there was improvement. If additional steps are required place two sets of exhaust dampeners one set before and one set after the front catalytic converter. It may be required to move the pair of dampeners along the exhaust system to get the best results.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5277A
Date: Nov-2015
MC-10115122-9999.pdf 295.986KB
NHTSA ID Number: 10139367
Manufacturer Communication Number: PIP5277
Summary
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have a resonance type vibration occurs between 40 to 60 MPH. In most cases the engine must be under a slight load such as Air Conditioning compressor engagement, light throttle, and in 6th gear Torque Converter Clutch applied. Technician will relax the engine and transmission mounts, then the exhaust system by loosening the front pipe studs. Also work down the system disconnecting one exhaust hanger at a time. Then take the vehicle on a test drive to verify there was improvement. If additional steps are required place two sets of exhaust dampeners one set before and one set after the front catalytic converter. It may be required to move the pair of dampeners along the exhaust system to get the best results.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5277
Date: Mar-2015
MC-10139367-9999.pdf 283.157KB
- 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
- 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.
![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 "Engine Vibration - Resonance/Boom Between 40 To 60 MPH - 2010-2017 Chevrolet Equinox & GMC Terrain 7")
- 【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
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Subject: Models: Service Bulletin PRELIMINARY INFORMATI01N Engine Vibration – Resonance/Boom Between 40 To 60 MPH 2010 – 2017 Chevrolet
Equinox 2010 – 2017 GMC Terrain Equipped With the 2.4 Cylinder Engine (RPO’s LAF and LEA) This Pl was superseded to update Model Years. Please discard PIP5277 A. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this Pl. Condition/Concern Some customers may comment that a resonance type vibration occurs between 40 to 60 MPH. Bulletin No.: PIP5277B Date: Jun-2016 In most cases the engine must be under a slight load such as NC compressor engagement, light throttle, and in 6th gear tee applied. It also is described as a 2nd order engine boom or vibration. In most cases this is an inherent condition on 4 cylinder models, however in some cases this condition is much more amplified. Recommendation/Instructions Relax engine and transmission mounts, then the exhaust system by loosening the front pipe studs. Work down the system disconnecting one exhaust hanger at a time. Test drive to verify any improvements. If additional steps are required place two sets of exhaust dampeners (part #10199232 and attach with 2 1 /2″ exhaust clamps, part #15595206) one set before and one set after the front catalytic converter. It may be required to move the pair of dampeners along the exhaust system to get the best results (photos attached). This repair will only improve noise and vibration to a condition comparable to like vehicles with the 4 cylinder powertrain. Fabricate 2 dampers using the following procedure: 1. Obtain 4 dampeners, Part Number 10199232. 2. Line up 2 dampeners so the dampener pipes are opposite of each other. 3. Line up one mounting hole from each dampener with the holes of an appropriate size exhaust clamp. 4. With all of the holes lined up, weld the flat portion of the dampeners together and to the flat part of the exhaust clamp 5. Attach the dampeners to the exhaust system using exhaust clamps. Warranty Information For vehicles repaired under warranty use: Labor Operation Description Labor Time 4050272 Exhaust System Alignment Use Published Labor Operation Time Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
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