2007 Grand Prix Overheat
30

Asked by User121 May 07, 2019 at 10:02 PM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Car drove fine till lower radiator coolant hose
popped off. Now overheats. 153xxx miles,
replaced ECT sensor and thermst.

5 Answers
30

User121 answered 5 years ago

Gonna check that first thing tomorrow. Thanks for the help!

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15

GuruWXM8S answered 5 years ago

I agree, you may need to either idle it with the coolant cap off for a few min to let the air out, or check if you have a coolant bleeder on the engine

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30

User121 answered 5 years ago

I only see a bleeder valve on thermostat housing, but anyways. Now Check Gas Cap shows up on my dash?

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30

User121 answered 5 years ago

Figured out previous owner put 2 quarts too much motor oil. draining that now. Keep you updated tho for sure.

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GuruS9V16 answered 5 years ago

Car is now accelerating on its own. Shocking! But I’m thinking it’s the acc. Pedal sensor ?

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