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NHTSA ID Number: 10226385
Manufacturer Communication Number: PIP5845A
Summary
This Preliminary information communicates to the dealer technician that if the vehicle’s engine coolant reservoir has transmission fluid in it or if Glycol it found in the transmission fluid the dealer should replace the Automatic Transmission Fluid Cooling Exchanger. The dealer should refer to bulletin 08-07-30-035 for the recommended components that should be replaced in the transmission and to flush the engine cooling system following service information.
Condition
Some customers may comment of the following conditions:
Engine coolant reservoir is discolored with a strawberry milkshake appearance and may be overilled to the point where coolant is being expelled from the overflow.
In addition to above, engine, and/or transmission may experience an overheat condition.
In addition, possible degraded transmission performance including any of the following:
Shudder, vibration, shake, shift performance and slipping. The transmission fluid level may be low when checked.
Transmission may have overheat/burnt fluid, with or without any DTC setting, and/or without showing the strawberry milkshake appearance.
Any transmission related concern found with vehicle built between the build dates listed above, should have the fluid tested for possible glycol contamination.
Cause
The Automatic Transmission Fluid Cooling Exchanger may have an internal leak allowing transmission fluid and engine coolant to intermix contributing to and of the above conditions.
20 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
CADILLAC | ESCALADE ESV | 2021-2022 |
| CHEVROLET | SILVERADO 1500 | 2021-2022 |
| CHEVROLET | SILVERADO 2500 | 2021-2022 |
| CHEVROLET | SILVERADO 3500 | 2021-2022 |
| CHEVROLET | SUBURBAN | 2021-2022 |
| CHEVROLET | TAHOE | 2021-2022 |
| GMC | SIERRA 1500 | 2021-2022 |
| GMC | SIERRA 2500 | 2021-2022 |
| GMC | SIERRA 3500 | 2021-2022 |
| GMC | YUKON XL | 2021-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5845A
Published date: 10/19/2022
MC-10226385-9999.pdf 277.132KB
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- For use in all transmissions including automatic, CVT, DCT and manual transmissions
- Removes grease, dirt, sludge and metal shavings
- Prevents new or rebuilt transmissions from pollutants
- Will not pollute new transmission fluid
- Contains no CFCs or Chlorinated solvents
- Safely removes varnish deposits
- Prepares transmission for new fluid
- Safe for use in manual or automatic transmissions
- Contains rust and corrosion inhibitors
- Does not contain harmful solvents
- Cleans Automatic Transmissions
- For Optimum Gear Shift Performance
- Cleans and Frees ATF Circuit of Deposits and Residues
- Safely removes varnish deposits
- Prepares transmission for new fluid
- Protects against heat, wear and oxidation
- The protectant used by transmission professionals worldwide
- The only product used and endorsed by automakers
- Item Package Dimension: 9.79L x 2.49W x 2.49H inches
- Item Package Weight - 1.69 Pounds
- Item Package Quantity - 1
- Product Type - HARDWARE TUBING
- The #1 transmission problem solving additive
- Contains no solvents
- Can be added to existing fluid without draining any out
- Effective in an extremely high percentage of cases
- Extends needed protection to planetary gears
- Prolongs fluid life
- Maintains transmission performance
- Extends transmission life
- Prevents thermal breakdown of fluid
- Greatly improves oxidation stability
- For All Vehicles with Automatic Transmission & CVT.
- Clean & Dissolves Contamination.
- Lubricates While Working in the System.
- Safe and Effective Formula.
- Specially formulated transmission cooler flush
- Dissolves and flushes unwanted particles
- Compatible with transmission cooler system components
- Genuine OEM Chrysler fluid
- Foaming resistant
- This versatile automative vacuum transmission fluid (ATF) extractor and dispenser is designed to extract and dispenser automatic transmission fluid, by using vacuum generated by workshop compressed air pressure.
- The ATF Filler Kit is equiped with dual control mechanism, just put the plug in or out to switch between extracting and dispensing. All the supplied hoses and ATF adapters is built with quick-fit connectors and can be fit in the main hose with control valve and quick-connector.
- This fluid extractor and dispender comes with a thicker and translucent tank is designed for frequent usage and monitors fluids level easily. At the same time the deliveried main hose with on-touch controller makes it possible to control the transferring fluids easily by switching on/off.
- This automatic transmission fluid pump built with a pressure gauge and safety valve allows to check the inside vacuum pressure while operating to eliminate any potential risks at work. The head unit is removable for easy cleaning and maintenance.
- Set includes: Pneumatic transmission fluid pump, all-metal 15pcs ATF filler adapters, 1x 60 inch main hose with control valve and quick-connector, 1x 39 inch flexible clear silicone hose (∅6mm), 2x 39 inch semi rigid nylon tube (∅8mm, ∅10mm), 1x 39 inch Brake bleeding hose.
SEOCONTENT-START
Bulletin No.: PIP5845A Published date: 10/19/2022 Preliminary Information PIP5845A Engine Coolant Reservoir Overfilled With Discolored Coolant Possible Engine Overheat Transmission Shake Shudder Vibration Shift Performance Or Slipping Models Brand: Cadillac Chevrolet Chevrolet Chevrolet GMC GMC Model: Escalade Models Silverado Suburban Tahoe Sierra Yukon Models Model Years: 2021 – 2022 2021 – 2022 2021 – 2022 2021 – 2022 2021 – 2022 2021 – 2022 VIN: from to 03/01/2021 03/31/2022 03/01/2021 03/31/2022 03/01/2021 03/31/2022 03/01/2021 03/31/2022 03/01/2021 03/31/2022 03/01/2021 03/31/2022 Engine: LM2 L3B LM2 LM2 LM2 L3B LM2 LM2 Transmissions: MQC MQB MQE MQC MQC MQB MQE MQC Involved Region or Country Condition North America Some customers may comment of the following conditions: Engine coolant reservoir is discolored with a strawberry milkshake appearance and may be overfilled to the point where coolant is being expelled from the overflow. See photo below (coolant is not bright orange and translucent). In addition to above, engine, and/or transmission may experience an overheat condition. In addition, possible degraded transmission performance including any of the following: Shudder, vibration, shake, shift performance and slipping. The transmission fluid level may be low when checked. Transmission may have overheat/burnt fluid, with or without any DTC setting, and/or without showing the strawberry milkshake appearance. Any transmission related concern found with vehicle built between the build dates listed above, should have the fluid tested for possible glycol contamination. Cause The Automatic Transmission Fluid Cooling Exchanger may have an internal leak allowing transmission fluid and engine coolant to intermix contributing to and of the above conditions. Correction: Confirm the presence of coolant in the transmission fluid using Service Bulletin # 08-07-30-035 (Information on Water Ethylene Glycol in Transmission) in SI. Using 08-07-30-035 as a guide repair or replace the transmission assembly following SI. Replace the Automatic Transmission Fluid Cooling Exchanger. Thoroughly Flush the Engine Coolant System to remove the contaminated engine coolant following SI. Refill the engine coolant system following SI. Warranty Information For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation Description Labor Time 8451010 Automatic Transmission Fluid Cooling Exchanger Replacement. Use published labor time. Note: The Automatic Transmission Fluid Cooling Exchanger is the causal part the other components should be added to the warranty claim. Time punches should be used to support the OLH required. Version History Version 2 03/23/2022 – Created on. Modified 10/19/2022 – Updated to add addition comments for conditions. © 2022 General Motors. All Rights Reserved.
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