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NHTSA ID Number: 10205551
Manufacturer Communication Number: 21NA122
Summary
This technical bulletin provides a procedure to replace the radiator brackets if found loose and the cause of the customers concern.
6 Affected Products
Vehicles
MAKE | MODEL | YEAR |
CHEVROLET | EQUINOX | 2020-2022 |
GMC | TERRAIN | 2020-2022 |
Condition
A customer may come in with a complaint of excessive vibration in the steering wheel or seat or floor at idle or at low to moderate speeds. .
– They may equate it to a vehicle speed, but it’s more likely in driving conditions of under 1300 RPM. Complaint can also be a very low frequency boom sound or a pressure in their ears
Cause
This may be caused by a touch condition between the bottom surface of the radiator upper bracket and the top of the radiator tank.
– There should be about 3 mm of free play in the vertical direction of the radiator upper bracket to avoid bind-up and increased vibration or boom sound in the car. A badge or credit card should be able to fit between the radiator upper mount and the radiator tank, all the way to the locating pin.
Correction
Verify if this is the cause of the sound or vibration, it can be verified in the stall by evaluating vehicle idle noise/vibration and/or raising the engine RPM in Drive to 12001300 with foot on brake. While at this engine speed, have a helper remove the bolts on the radiator upper brackets. The noise or vibration should improve or go away.
• If the noise or vibration is eliminated by loosening the bolts, replace both of the radiator upper brackets. Refer to Radiator Upper Bracket Replacement in SI.
• If the noise or vibration is NOT eliminated by loosening the bolts, refer to SI.
Parts Information
Causal Part | Description | Part Number | Qty |
X | BRACKET,RAD UPR – LH | 84981710 | 1 |
X | BRACKET,RAD UPR – RH | 84981711 | 1 |
SEOCONTENT-START
Service Bulletin Bulletin No.: 21-NA-122
Date: November, 2021
TECHNICAL
Subject: Vibration or Boom At 1300 RPM
This Bulletin replaces PIT5778. Please discard PIT5778.
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Chevrolet Equinox 2020 2022
Holden Equinox 2020 2020
GMC Terrain 2020 2022
Involved Region or Country
North America, Middle East, Israel, Palestine, Argentina (Mercosur), Brazil (Mercosur),
Chile (West), Colombia (West), Ecuador (West), Peru (West), Uruguay (West), GM Korea
Company, Thailand (ASEAN), Australia/New Zealand, Egypt, Other Africa
Condition
A customer may come in with a complaint of excessive vibration in the steering wheel or
seat or floor at idle or at low to moderate speeds. .
– They may equate it to a vehicle speed, but it’s more likely in driving conditions of under
1300 RPM. Complaint can also be a very low frequency boom sound or a pressure in
their ears
Cause
This may be caused by a touch condition between the bottom surface of the radiator
upper bracket and the top of the radiator tank.
– There should be about 3 mm of free play in the vertical direction of the radiator upper
bracket to avoid bind-up and increased vibration or boom sound in the car. A badge or
credit card should be able to fit between the radiator upper mount and the radiator
tank, all the way to the locating pin.
Correction
Verify if this is the cause of the sound or vibration, it can be verified in the stall by
evaluating vehicle idle noise/vibration and/or raising the engine RPM in Drive to 1200-
1300 with foot on brake. While at this engine speed, have a helper remove the bolts on
the radiator upper brackets. The noise or vibration should improve or go away.
• If the noise or vibration is eliminated by loosening the bolts, replace both of the
radiator upper brackets. Refer to Radiator Upper Bracket Replacement in SI.
• If the noise or vibration is NOTeliminated by loosening the bolts, refer to SI.
Parts Information
Causal
Part
Description Part
Number
Qty
X BRACKET,RAD
UPR – LH
84981710 1
X BRACKET,RAD
UPR – RH
84981711 1
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description Labor Time
4030710 Radiator Upper Bracket
Replacement – Left Side
Use the
Published
Labor
Operations
Time
4030720 Radiator Upper Bracket
Replacement – Right Side
Page 2 November, 2021 Bulletin No.: 21-NA-122
Version 2
Modified Released July 12, 2021
Revised November 05, 2021 – Added 2022 to Model Year.
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: 21-NA-122
Date: November, 2021
https://www.nhtsa.gov/recalls?nhtsaId=10205551
MC-10205551-9999.pdf 504.583KB
NHTSA ID Number: 10193453
Manufacturer Communication Number: PIT5778A
Summary
This preliminary information discusses the possibility of a cabin boom type noise and that engineering is investigating the concern.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5778A
Published date: 04/14/2021
https://www.nhtsa.gov/recalls?nhtsaId=10193453
MC-10193453-9999.pdf 248.401KB
NHTSA ID Number: 10181162
Manufacturer Communication Number: PIT5778
Summary
This preliminary information discusses the possibility of a cabin boom type noise and that engineering is investigating the concern.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5778
Published date: 09/23/2020
https://www.nhtsa.gov/recalls?nhtsaId=10181162
MC-10181162-9999.pdf 271.394KB
“This site contains affiliate links for which OEMDTC may be compensated” |
- 【Replace Part Number】:4012-326-682S 4012326682S 6264100
- 【Application】:1973-1975 Apollo, 1975-1979 Skylark, 1970-1981 Chevy Camaro, 1968-1973 Chevy Chevelle, 1968-1981 Chevy El Camino, 1968-1976 Chevy Impala, 1978-1981 Chevy Malibu, 1969-1979 Chevy Nova, GMC 1978-1981 Caballero, GMC 1971-1977 Sprint
- 【High Quality Material】:Made of high quality and durable rubber. Not deformed, not easy to wear, can withstand high and low temperatures. Tested and certified to meet or exceed OEM quality standards.
- 【Easy to Install】:Radiator isolation cushion are used between the radiator and the core support. Direct replacement of worn mounts. Plug and play, no additional tools required.
- 【Attention】:Support the radiator when mounted to the radiator support.
- √【Replacement OME Number】: 6264100,4012-326-682S,GMK4012326682S,9799503.
- √【Compatible with】: Buick: 1968-1972 Gran Sport, 1968-1970 Skylark, 1968-1972 Special / Chevrelot: 1968-1972 Chevelle, 1969-1970 Chevelle Concours, 1969-1970 Chevelle Greenbriar, 1972 Malibu, 1968-1972 El Camino, 1970-72 Monte Carlo, 1970-81 Camaro ,1967-85 Impala / 1968-1972 Cutlass, 1968-1972 Cutlass Supreme, 1968-1972 F-85 / Pontiac: 1968-1971 GTO, 1968-1972 LeMans, 1968-1970 Tempest Note:Please confirm that the parts listed are not suitable for other models and years.
- √【High-Quality】: Rubber radiator insulator support. Suitable for Buick, Chevrolet and Pontiac. The quality of replacement parts far exceeds that of OEM, and the product surface is free of any defects. Designed for heavy-duty 4-core radiators.
- √【package includes】: 2 rubber pads and 2 rubber pads. Four rubber pads, all with metal inserts, enhance strength and stability and make their service life longer.
- √【Warm Tips】:If you encounter problems during the installation process, please contact us immediately,Please make sure your model matches what is listed here
- 【Premium Materials】 These Radiator Support Pad crafted from superior rubber material.Not deformed, not easy to wear, can withstand high and low temperatures.And support to your radiator, which can achieve faster starting speed and stable driving.Tested and certified the quality of replacement parts far exceeds that of OEM high flexibility and great cushioning performance.
- 【OE Number Compatibility】This 4 Core set of rubber radiator insulation pads can perfectly fit and replace products with the following OEM numbers:4012-326-682S,6264100,GMK4012326682S,9799503.Please double check the part number of your item before ordering.
- 【Compatibility】Our 4 core radiator support pads are suitable for most GM cars between 1968-1981,Chevrelot: II Nova(1968-1973),Nova(1969-1979),Chevelle(1968-1973),Impala (1967-1985),El Camino (1968-1982),Camaro (1970-1981),Concours (1969-1970),Greenbriar (1969-1970),Monte Carlo (1970-1972),Malibu (1978-1981)/Cutlass (1968-1972),Cutlass Supreme (1968-1972),F-85 (1968-1972)/GMC:Caballero (1978-1981),Sprint (1971-1977 )/Buick: Apollo (1973-1975),Skylark (1968-1979),Gran Sport (1968-1972),Special (1968-1972)Pontiac:Ventura (1971-1977),GTO (1968-1971),LeMans (1968-1972),Tempest (1968-1970)/Omega (1973-1979)
- 【Extension Function】Rubber radiator insulator support pad securely secures your radiator to the car,minimizing vibrations, prevent potential damage and ensure efficient and stable operation of your engine cooling system.
- 【Easy Installation】This set includes 4pcs radiator mounting cushions, easy assembly, direct replacement of worn mounts. No other tools required.
- √【Replace Part Number】:4012-326-681S, 306872890, 4012326681S.
- √【High-Quality】:The use of high-quality serviceable rubber, serviceable without deformation, not easy to wear. Able to withstand high and low temperatures.
- √【Note】: Support the radiator when mounted to the radiator support.
- √【Easy to Install】:Set of 4 rubber cushions used between the radiator and the core support.Direct replacement of worn upper and lower mounts.
- √【Service 】: if you encounter problems during use, please contact me immediately
- 【Replace Part Number】:7-1711
- 【Application】:1978-1987 GMC Caballero, 1973-1987 GMC CK Pickup, 1973-1977 GMC Sprint, 1968-1975 Chevy Bel Air, 1968 Chevy II, 1969-1972 Chevy Townsman
- 【High Quality Material】:Made of high quality and durable rubber. Not deformed, not easy to wear, can withstand high and low temperatures. Tested and certified to meet or exceed OEM quality standards.
- 【Easy to Install】:Radiator isolation cushion are used between the radiator and the core support. Direct replacement of worn mounts. Plug and play, no additional tools required.
- 【Attention】:Support the radiator when mounted to the radiator support.
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- 【Replace Part Number】:4012-326-681S 4012326681S 306872890
- 【Application】:1968 Chevy II, 1970-1981 Camaro, 1968-1973 Chevelle, 1968-1976 Impala, 1968-1981 Malibu, 1969-1979 Nova, 1979 Malibu Sport 4 door, 1968-1981 Camino, 1978-1981 GMC Caballero, 1971-1977 GMC Sprint, 1971-1977 Pontiac Ventura, 1973-1975 Apollo, 1975-1979 Skylark
- 【High Quality Material】:Made of high quality and durable rubber. Not deformed, not easy to wear, can withstand high and low temperatures. Tested and certified to meet or exceed OEM quality standards.
- 【Easy to Install】:Radiator isolation cushion are used between the radiator and the core support. Direct replacement of worn mounts. Plug and play, no additional tools required.
- 【Attention】:Support the radiator when mounted to the radiator support.
- Genuine Oem:Yes, Category 2:Cooling, Superseded Part Number:13300486, Part Ref# On Diagram:ONLY PART REFERENCE #4 ON THE DIAGRAM IS
- Brand:GM, Fitment Type:Direct Replacement, Other Part Number:13300486, Category 1:Cooling System
- Manufacturer Part Number:13337826, Category 3:Radiator & Components, Item Name:Radiator Lower Bracket, Placement On Vehicle:Lower
- 4Pcs Engine Radiator Insolators. Red Urethane GM Engined Radiator Isolators fits various GM vehicles with small block engines. Replace Part Number:7-1711
- For-GM vehicles with factory , 1978-1987 GMC Caballero, 1973-1987 GMC CK Pickup, 1973-1977 GMC Sprint, 1968-1975 Chevy Bel Air, 1968 Chevy II, 1969-1972 Chevy Townsman
- Package include: Four isolators included. Support the radiator when mounted to the radiator support.
- Material:Durable Urethane. Made of high quality and durable rubber. Not deformed, not easy to wear, can withstand high and low temperatures. Tested and certified to meet or exceed OEM quality standards.
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