Overheating when driven, but not when idle

[Cheddars]

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[t-tony]

Did you notice any pressuring of the hoses? There will always be some with a hot engine but if it was combustion pressure they are rock hard.

Tony.

 

[Cheddars]

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[t-tony]

That means the thermostat couldn't have been open, or at least not fully open. It does sound like an air lock.

Tony.

 

[gookah]

is your water pump impeller slipping?. when was it last changed?

 

[Dickymint]

Sounds like the Rad to me but best bet would be to go get a sniff test done by a garage to be on the safe side before you spend out on a rad

 

[t-tony]

To be honest if you have combustion gasses coming up in the rad you can smell it, and see it.

Tony.

 

[Cheddars]

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