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NHTSA ID Number: 10198887
Manufacturer Communication Number: 21NA118
Summary
This technical bulletin provides a procedure to align the exhaust causing a vibration.
8 Affected Products
Vehicles
Condition
Some customers may comment on a vibration type noise at highway speeds and/or with Engine Speed at 1,300-1,500 RPM. The sound can usually be heard from under the vehicle.
Cause
The cause of the condition may be due to some of the metal gasket tabs between the front exhaust and muffler not being fully crimped, exhibiting some spring-back, allowing for them to touch at certain speeds / RPMs.
Correction
Refer to the procedure below to correct the condition stated above.
Service Procedure
With a small punch or chisel and hammer bend/crimp the tabs on the exhaust gasket in further to prevent any spring-back and provide increased clearance between the two tabs to correct the noise or cutting the tabs off the gaskets is also acceptable.
Parts Information
No parts are required for this repair.
SEOCONTENT-START
Service Bulletin Bulletin No.: 21-NA-118 Date: May, 2021 TECHNICAL Subject: Vibration Type Noise Heard at Highway Speeds or with Engine Speed at 1,300-1,500 RPM Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Cadillac
XT5 XT6 2020 2021 LGX All Chevrolet Blazer GMC Acadia Involved Region or Country North America, Russia, Middle East, Israel, Palestine, Chile, Columbia, Ecuador, Peru, Japan, S. Korea, Australia and New Zealand. Condition Some customers may comment on a vibration type noise at highway speeds and/or with Engine Speed at 1,300-1,500 RPM. The sound can usually be heard from under the vehicle. Cause The cause of the condition may be due to some of the metal gasket tabs between the front exhaust and muffler not being fully crimped, exhibiting some spring-back, allowing for them to touch at certain speeds / RPMs. Correction Refer to the procedure below to correct the condition stated above. Service Procedure 5776432 With a small punch or chisel and hammer bend/crimp the tabs on the exhaust gasket in further to prevent any spring-back and provide increased clearance between the two tabs to correct the noise or cutting the tabs off the gaskets is also acceptable. Parts Information No parts are required for this repair. Page 2 May, 2021 Bulletin No.: 21-NA-118 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 4088058* Align Exhaust System 0.3 hr *This is a unique Labor Operation for Bulletin use only. Version 1 Modified Released March 19, 2021
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-118
Date: May, 2021
MC-10198887-9999.pdf 976.113KB
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NHTSA ID Number: 10193433
Manufacturer Communication Number: PIT5825B
Summary
This Preliminary information communicates information regarding a Vibration Type Noise from the metal gasket tabs between the front exhaust and muffler.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5825B
Published date: 04/6/2021
MC-10193433-9999.pdf 274.212KB
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- 【Pin Punches】- 9pcs pin punches with knurled handle are made of high quality hardened steel, and come with red fitted nylon storage pouch, easy to use, carry, storage and hang.
- 【Universal Block】- It is made from high quality material, non-marring work surface to avoid the damage of your product parts, durable in use.
- 【Double-sided Hammer】- 25mm rubber double-sided hammer come with 2 more spare rubber heads, perfect for specialized craftsmanship, deliver a perfect solid strike without damaging small parts or finished product surface.
- 【Package Include】- This pin punch set includes a universal block, 9pcs different size pin punches and a hammer with 2 spare rubber heads, this perfect kit will definitely accompany you for a long time in countless jobs, saving time and energy.
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- Available in 16 different shapes and designs, including: bolt hole alignment, ball head separation, unfolding knuckle, center punch, knockout bolts and pins.
- Heat treated chromium vanadium provides a high hardness rating that prevents rapid expansion of the head and passivation of the chisel and punch.
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- Product material: made of chrome vanadium steel, hardness: 54~58HRC
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- 【Package Include】16-Piece Punch and Chisel Set includes 5PC Tapered punch: 3/32" x 5-1/4", 1/8" x 5-3/4", 5/32" x 6", 3/16" x 6-1/4", 1 /4" x 6-3/4",3PC Cold Chisels: 3/8" x 5-1/2", 1/2" x 6", 5/8" x 6-1/2",5PC Punch: 3/32" x 4-1/4", 1/8" x 4-3/4", 5/32" x 5", 3/16" x 5-1/4", 1/4" × 5-3/4",2PC Center punch: 1/8" x 5", 3/16" x 6" and 1 x Chisel Gauge For Maintenance.
- 【Premium Material】Chisels and punch tools made from heat-treated chrome vanadium steel for enhanced toughness, durability, and wear resistance. Hardness: 54~58HRC. This set of chisels has a high hardness rating and can be used multiple times to prevent dulling.
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- 【Easy to Storage and Carry】This set comes with cloth roll-up carry and storage bags allow for quick storage in a safe and orderly manner, each chisel and punch marked with a size so they can be found quickly for the next use. The storage bags also makes it easy to transport and store the tools.
- 【Wide Application】The set is a must-have tool for artists, woodworkers, carpenters, metalworkers, automotive workers and home DIYers. Ideal for working with wood, metal, automotive, sculpture, and carving details into cabinets, moulding, dressers, wooden furniture and more!
- The high quality hardened 40# steel, These Pin Punches are heat treated, drop forged, hardened and knurled steel for greater durability, workability, and overall performance.
- Pin Punch Set is a great set of tools designed to remove and re-use roll pins without causing major damage to the pins.
- 8 pcs different size including 1/16”, 3/32”, 1/8”, 5/32”,3/16”, 7/32”, 1/4”, 5/16”, This set is ideal for repairing or servicing, small equipment, machines, and vehicles.
- Fitted nylon storage pouch:This 9pcs roll pin punch set tool kit come with Black carrying bag, easy to use, carry, storage or hang this tool set
- 12 hours quick customer service, please do not hesitate to contact us if you have any question or advice, we are always looking forward to satisfying you.
- Available in 16 different shapes and designs, including: bolt hole alignment, ball head separation, unfolding knuckle, center punch, knockout bolts and pins.
- Heat treated chromium vanadium provides a high hardness rating that prevents rapid expansion of the head and passivation of the chisel and punch.
- 5PC Tapered punch: 3/32" x 5-1/4", 1/8" x 5-3/4", 5/32" x 6", 3/16" x 6-1/4", 1 /4" x 6-3/4" and 3PC Cold Chisels: 3/8" x 5-1/2", 1/2" x 6", 5/8" x 6-1/2"
- 5PC Punch: 3/32" x 4-1/4", 1/8" x 4-3/4", 5/32" x 5", 3/16" x 5-1/4", 1/4" × 5-3/4" and 2PC Center punch: 1/8" x 5", 3/16" x 6"
- Product material: made of chrome vanadium steel, hardness: 54~58HRC
- The high quality chrome-vanadium steel, These Pin Punches are heat treated, drop forged, hardened and knurled steel for greater durability, workability, and overall performance.
- Roll Pin Punch Set is a great set of tools designed to remove and re-use roll pins without causing major damage to the pins.
- 9pcs different size including 1/16”, 5/64”, 3/32”, 1/8”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16”, This set is ideal for repairing or servicing, small equipment, machines, and vehicles.
- Fitted nylon storage pouch:This 9pcs roll pin punch set tool kit come with Black carrying bag, easy to use, carry, storage or hang this tool set
- 12 hours quick customer service, please do not hesitate to contact us if you have any question or advice, we are always looking forward to satisfying you.
- 16-piece woodworking punch and chisel set includes 3 cold chisels, 5 taper punches, 5 pin punches, 2 center punches, and 1 chisel punch gauge
- Heat treated, chrome vanadium (Cr-V) alloy steel construction
- Comfortable handles reduce hand strain and improve accuracy
- Storage pouch with velcro closure keeps tools organized and secured
- Use safety goggles
- SPECIFICATIONS: This set includes one roll pouch, five tapered punches (3/32 x 5-1/4, 1/8 x 5-3/4, 5/32 x 6, 3/16 x 6-1/4, 1/4 x 6-3/4 inch), three cold chisels (3/8 x 5-1/2, 1/2 x 6, 5/8 x 6-1/2 inch), 5 pin punches (3/32 x 4-1/4, 1/8 x 4-3/4, 5/32 x 5, 3/16 x 5-1/4, 1/4 x 5-3/4 inch), 2 center punches (1/8 x 5, 3/16 x 6 inch), and 1 chisel gauge for maintaining proper chisel edges.
- QUALITY: The ARES Punch and Chisel Set is made of chrome vanadium alloy steel and is finished with black phosphate, providing each tool with increased durability. The set is heat treated, providing the tools with high hardness ratings to stand up to serious work and prevent deformation of tools.
- COMMON APPLICATIONS: This kit is an essential addition for any tool kit. Thanks to its broad coverage, these tools are great for metal working, wood workers, artists, and mechanics performing automotive rebuilds or body work. Common application include center punching, bolt hole alignment, steering knuckle and ball joint separation, driving bolts and pins and more.
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- STRENGTH AND DURABILITY: One-piece construction forged from tempered tool steel
- LONG LIFE: Hardened and tempered steel designed to increase product life
- INCREASED VISIBILITY: Powder coating helps enhance visibility for quick identification
- SIZES INCLUDE 1/16 in., 5/32 in., 5/16 in., 1/4 in., 3/16 in., and 1/8 in.
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
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