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Cooolant level down no leakage from engine

Temp gage reading high when driving after 5 mins.
Coolant level low but no visible leaking.
Dealershop stated found smaill leak at base of water pump,(red zone) replaced temp gage and water pump. Problem still exist.
Delaer is going to take off head to see if problem internal. Had one cylinder head already replaced in past.

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U could have a leake in your head gasket and the collent is getting out that way . when car is up to temp stand behind the car near the exaust a see if u can smell the coolant

Posted on May 04, 2010

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I assume you have checked the cooling system to ensure that first, that it is completely full of coolant (not just the overflow tank) and second that there are no leaks anywhere. Your description indicates either low coolant level and/or air locks in the cooling system. Only check coolant level when engine is cold. If it needs topping up, add coolant and then run engine at idle with heat control on full, until it reaches operating temperature, topping up as necessary. Allow cooling fans to cycle on and off a few times to ensure all air is purged from system. If coolant was low, then check regularly when engine is warm to see if you can find where the coolant is leaking. The places where the hoses connect to the metal pipes around the engine are the most likely points of leakage or a hose could have weakened and split.

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have you lifted the hood and heard the coolant bubbling into the overflow?
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