Question about 2003 Ford Expedition

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I have had car put under pressure to check for

I have had my 2003 Ford Expedition put under pressure to check for coolant leak, no leak found. Have to check the overflow every week or so because coolant is leaking somewhere. What is happening?

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  • Samuel Charles Spriggs May 11, 2010

    Could be a head gasket leaking coolont into the engine. Is the oil on the dipstick "brownish"? Charlie

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It's possible your water pump is not working at a 100%. You may be experiencing boil over. Change your rad cap first. Check to make sure your thermostat is opening properly & antifreeze is circulating by opening the rad cap when engine is cold start & view movement .No movement change water pump.

Posted on Sep 09, 2009

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You could just be burning it up. Do you have accesive white smoky exhaust?
Have you filled radiator completely. Fill completely once while vehicle is running, burp upper radiator hose while adding. Then wait 10 minutes and the coolant level should drop in radiator as it will flow into engine block. This is where you want to fill the system again, and put the cap on.

Posted on Sep 09, 2009

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