Question about 2001 Jeep Grand Cherokee

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I have a 2001 jeep grand cherokee losing antifreeze no leaks.

I have a 2001 jeep grand cherokee (inline 6) losing antifreeze and leaks found. I had a new head gasket replaced by local JEEP dealership and CW system pressurized including radiator cap. Car runs like a new but antifreeze leak still exist. Email Address is Forrest.Brown@dla.mil

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  • forrest_brow Nov 17, 2009

    Correction! Losing antifreeze no leaks found. Jeep dealership replaced head gasket and ran fine for a year. Afterwards problem resurfaces. Replenish lost antifreeze at recovery tank.

  • Ernset ( Skip ) Bouvette

    You need to take it back to the repair shop.. No way for any of us guess correct without looking at it.

  • jz auto May 11, 2010

    where is it leaking from? check the heater valve, waterpump and thermostat. let me know

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Good point there is a good chance this has a cracked head

Posted on Nov 17, 2009

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This is a hands on diag. If no leaks can be found then the coolant has to be going out the tailpipe. Chances are you have a cracked head or a cracked block. New gasget only temporarily sealed the crack. But then we are just guessing.

Posted on Nov 17, 2009

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Check your water pump for signs of seepage. Do this with no pressure in the system and cap off. Sometimes in the beginning stages of failure pressurizing the system will drive the seal against the shaft and actually hide the leak. I have seen very small cracks in cylinder heads, especially between the valves that won't show up on a pressure test 'till they get worse. Check the plugs for any coloring from antifreeze.
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