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post #1 of 8 Old 03-23-2013, 11:39 PM Thread Starter
cleveland99
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1999 TJ Wrangler 
 
Join Date: Mar 2013
Location: cartersville
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leak

Leak
OK please help the last few days I have had a leak of coolant and can not find it it only does when we first take off and drive then stops I have a press test nothing i have replaced top hose and still nothing I have checked all clamps it does not appear to be waterpump or headgasket it seems when cold out it leaks not when it warm

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post #2 of 8 Old 03-25-2013, 05:54 AM
bear991
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1978 CJ7 
 
Join Date: Jan 2013
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Cleveland, I'm a mechanic and want to ask you did you put the pressure tester on while it was cold and check it. I own a fleet of over the road trucks and I have one that only leaks when it's cold and sits for a couple of days. Finally found it leaking at the firewall heater connection which is just over the engine block. It would drip down on block then run down the oil pan making me think it was a head gasket.If you haven't try it cold and that would eliminate everything from the thermostat forward if nothing leaks. I'm assuming you smell it after the engine gets warm or do you see it on the ground? Just my .02
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post #3 of 8 Old 03-25-2013, 07:53 AM Thread Starter
cleveland99
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1999 TJ Wrangler 
 
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I smell.it and can see on the passenger side.bottom.
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post #4 of 8 Old 03-25-2013, 04:15 PM
bear991
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Put the pressure tester on it cold and see if it leaks. You will probably have to pump it up a little over the cap rated pressure ,but not much,don't want to create a leak somewhere else. How often are you adding coolant to it?
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post #5 of 8 Old 03-25-2013, 04:25 PM Thread Starter
cleveland99
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1999 TJ Wrangler 
 
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Location: cartersville
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Not really that much thars why I am at lost
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post #6 of 8 Old 03-26-2013, 07:39 PM
bear991
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Cleveland that could be a heater core leaking.....hard to really sort out without being able to put hands on
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post #7 of 8 Old 03-26-2013, 08:54 PM Thread Starter
cleveland99
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1999 TJ Wrangler 
 
Join Date: Mar 2013
Location: cartersville
Posts: 39
Not heater core no fluid inside
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post #8 of 8 Old 04-12-2013, 08:14 AM
olewilly
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1989 MJ Comanche 
 
Join Date: Mar 2013
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Check your oil, I have seen them leak coolant into the oil, if that's the problem oil will look kinda milky.
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