2003 century Buick overheats

Asked by May 08, 2017 at 05:56 PM about the 2003 Buick Century Sedan FWD

Question type: Maintenance & Repair

I have changed the radiator, coolant is full
and does not leak. Kicker, if I run my heat it
doesn't overheat the slightest. And if it's
overheating all I have to do is run the heat
full blast and it goes back down like
nothing happened? Any ideas would be

1 Answer


Did you purge the cooling system after refill it? If not the cooling system needs to be purged from air. Here is a sight on how to do that... https://www.youtube.com/watch?v=zUpXgAJ1gjU

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