Overheating

2007 HOLDEN COMMODORE
133,000 MILES • 1.4L • V6 • 2WD • AUTOMATIC
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MARKOOMEGA
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  • 1 POST
I have a overheating problem with my 2007 Holden Omega. Replaced radiator cap topped with proper coolant. Drove hour was fine jumped up and down in temperature but did not overheat. As soon as I pulled into town it overheated again thermo fans staying on when car is off. When stopped car runs fine. Is it the thermostat? I just do not no.
Aug 25, 2018 at 6:39 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi and thanks for using 2CarPros.com.

It does sound like there is a thermostat problem. If the cooling fans are working properly, the thermostat would be my first suspect. Here is a link that shows in general how one is replaced and how to test one. Also, the first link describes how it works.

https://www.2carpros.com/articles/how-an-engine-thermostat-works

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

Let me know if this helps or if you have other questions.

Take care,
Joe
Aug 25, 2018 at 7:24 PM
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