Coolant leak -
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post #1 of 5 Old 12-02-2011, 05:27 PM Thread Starter
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Coolant leak

My 2001 Jeep Grand Cherokee Laredo is leaking coolant. There is a puddle where I park. Some days is seems to leak a little while other days it leaks a lot. I added coolant to the reservoir on Monday and by Friday it was at the add line again. The Jeep does not over heat while driving but will over heat if left idling. Any clues as to what is wrong? Any help would be greatly appreciated.

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post #2 of 5 Old 12-02-2011, 05:42 PM
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Location: Highlands Ranch, CO
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Could be a few things. Radiator, water pump, heater core, etc. More info would help, where's the puddle, what year Jeep, i6 or V8, etc.
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post #3 of 5 Old 12-02-2011, 05:47 PM Thread Starter
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It's a 2001 6 cylinder 4wd. the puddle is pretty much center towards the front of the engine. I only have coolant underneath the engine. Nothing on the hood or on top of the engine.
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post #4 of 5 Old 12-02-2011, 06:13 PM
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Location: S. Georgia/N. Florida
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I had a small leak two months ago, it would leak worse on cooler evenings and not leak at all when running or during warm days parked. Turned out to be the o-ring seal on the thermostat.

I had a BIG leak start last week, opposite symptoms, leaked while under pressure and after I first parked it but slowed to a stop when the engine cooled. That one turned out to be the side seam of the radiator. I'm awaiting the nice UPS man to bring me my new radiator as I type...

2002 Jeep Grand Cherokee Overland
Old Man Emu HD coils, 265/65/17 Nitto Terra Grapplers, Warn M8000, home made light bar, Cepek 130 watt lights, Hella 500s

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post #5 of 5 Old 12-02-2011, 06:24 PM
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2001 WJ 
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Center up fron suggests water pump, t-stat, radiator. Though typically the radiator will leak from the side where the plastic tanks are attatched. I would look first at the water pump or t-tstat.
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