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  1. Replies
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    6,767

    Re: Coolant question

    Like I said in my last post your best chance of finding it is to run the engine up to normal operating temperature, shut it down, and immediately look around for the leak while the cooling system's...
  2. Replies
    22
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    6,767

    Re: Coolant question

    The three most likely sources are the water pump weep hole, lower radiator hose (where it connects to the water pump), and the thermostat housing gasket.
    If it's the last one, you'll see coolant...
  3. Replies
    22
    Views
    6,767

    Re: Coolant question

    Unfortunately many '00/'01 4.0L Jeeps were afflicted with a head cracking issue and the first sign is a mystery coolant loss. The coolant slowly seeps into the crankcase through a crack in the head...
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