GENERAL MOTORS Issues TSB For Chevy Blazer, GMC Acadia, Cadillac XT4 Plus XT5 Over Coolant Pipe Problem

General Engines has issued a Technical Services Bulletin to address an issue with the motor coolant pipe on certain Chevy Blazer , GMC Acadia , The cadillac XT4 and Cadillac XT5 crossover models.

According to the TSB record that GM issued this week, some its 2021 model year cars may have a coolant inlet tube that may present an obstructed threaded hole for the coolant temp messfühler which could result in the check motor light coming on or a possible coolant leak. The following vehicles take part in this TSB action:

Dealers are advised to replace the coolant inlet tube and the temperature sensor in impacted vehicles. It is estimated that there are only fifteen vehicles affected by this problem that will need repair parts. These repairs will require a little over two hours pertaining to certified service centers to complete. Various other vehicles may not need repair components, so long as they pass a cooling leak check.

Automobiles that do require repairs will need the next parts replaced:

  • Engine Coolant Thermostat Inlet Tube
  • Engine Coolant Temp Sensor
  • Gasket, Temperature control system Inlet Pipe
  • Motor Coolant
  • Exhaust Tube Clamp
  • Catalytic Converter Gasket
  • Exhaust Muffler Gasket

The problems addressed in this bulletins may affect customer vehicles and also vehicles that are still sitting upon GM dealership lots. The TSB will expire at the end of each impacted vehicles’ new vehicle warranty time period.

The Chevy Blazer is built at the GM Ramos Arizpe plant in Mexico, while the The cadillac XT4 is built at the GM Fairfax Assembly plant in Kansas. The particular GMC Acadia and Cadillac XT5 are built alongside each other at the GM Spring Slope Assembly plant within Tennesee.

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