Coolant boiling but engine not overheating?

2012 GMC ACADIA
300,000 MILES • 3.6L • V6 • 4WD • AUTOMATIC
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KHALIDDVD
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  • 56 POSTS
Coolant boiling but engine not overheating and decreasing became low in system after discharge at accumulator. What can cause and what to do?
May 13, 2024 at 9:13 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,214 POSTS
If the coolant is boiling then the engine is overheating, I would make sure there are no leaks and replace the radiator cap to start. How long does it take for the coolant to boil? If in a short drive, you could have a stuck thermostat which is common.

Here is a guide to help us:

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/replace-thermostat

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May 14, 2024 at 5:07 AM
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