Amateur Needs Help with Jeep Overheating - JeepForum.com

 
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post #1 of 9 Old 08-05-2016, 06:13 PM Thread Starter
TranceRusso
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Amateur Needs Help with Jeep Overheating

I'll try to keep this short and sweet.

I've got a 2001 Wrangler Sport that just won't stop overheating. A couple months ago, I took it into my mechanic, turns out it was an issue with the head gasket, which they promptly repaired. It ran wonderfully until a few days ago. I parked and my Jeep began POURING water onto the pavement under the passenger side of the car. Now, if I idle for more than about 30 seconds, it shoots from its normal 210 degrees to 260 plus. When I move, it air cools, so it's essentially back to how it was before I took into the shop. I filled the coolant yesterday, and that helped slightly, but it still has trouble remaining at a normal temperature. I know there is not a leak with the coolant either.

I've found countless threads online about this topic, but none concisely answer my question. Keep in mind that I do not know much about cars in general, so I feel dumb enough having to ask this question in the first place. Any advice, however vague, will help. The Jeep was passed down from my father to me, so it means a lot that I keep it running in top shape.

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post #2 of 9 Old 08-05-2016, 07:34 PM
Knuckelhead
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Quote:
Originally Posted by TranceRusso View Post
I'll try to keep this short and sweet.

I've got a 2001 Wrangler Sport that just won't stop overheating. A couple months ago, I took it into my mechanic, turns out it was an issue with the head gasket, which they promptly repaired. It ran wonderfully until a few days ago. I parked and my Jeep began POURING water onto the pavement under the passenger side of the car. Now, if I idle for more than about 30 seconds, it shoots from its normal 210 degrees to 260 plus. When I move, it air cools, so it's essentially back to how it was before I took into the shop. I filled the coolant yesterday, and that helped slightly, but it still has trouble remaining at a normal temperature. I know there is not a leak with the coolant either.

I've found countless threads online about this topic, but none concisely answer my question. Keep in mind that I do not know much about cars in general, so I feel dumb enough having to ask this question in the first place. Any advice, however vague, will help. The Jeep was passed down from my father to me, so it means a lot that I keep it running in top shape.
Can you describe where the coolant was pouring from?

Also, filling in your profile will help with future questions.

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post #3 of 9 Old 08-06-2016, 04:54 AM
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Knuckelhead highlighted exactly what I was confused about in your statement.
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post #4 of 9 Old 08-08-2016, 10:10 AM
EricD
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Typical place to start would be the thermostat. It is cheap to replace.

http://www.jeepforum.com/forum/f9/re...stat-tj-533631
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post #5 of 9 Old 08-08-2016, 10:36 AM
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Water under passenger side -- heater hose or core?

Added : don't drive it until you know what is happening,that could damage the engine.

There is nothing unique about Jeep cooling systems. If anyone of your friends is knowledgeable about cars, they might be able to spot your problem.

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post #6 of 9 Old 08-08-2016, 10:45 AM
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As I understood it, the spillage was from the overheat condition, and he said there was no leakage otherwise?
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post #7 of 9 Old 08-08-2016, 10:58 AM
Jerry Bransford
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Spilling coolant on the ground only when it overheats makes me think there is a problem with the overflow container, more specifically where it connects to the radiator via that rubber hose. As in it's leaking or not connected. The radiator cap releases coolant when the pressure rises above 18 lbs. which happens when the coolant is too hot, but that released coolant is supposed to flow into the overflow reservoir.

The radiator cap could also simply not be screwed on all the way which would let the hot coolant leak out from under the cap.

That the temp makes a rapid jump to the overheat condition makes me think the thermostat has gone bad and is sticking shut. If that's the case, I'd replace it with a new thermostat with the correct factory specified 195 degree rating. Make sure NOT to install a "fail-safe" thermostat which gives problems by hanging up in the open position where it won't let the engine warm up properly in cooler conditions. A good thermostat, if you can find it, would be a Stant SuperStat.

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post #8 of 9 Old 08-14-2016, 03:27 AM
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Quote:
Originally Posted by TranceRusso View Post
When I move, it air cools, so it's essentially back to how it was before I took into the shop. I know there is not a leak with the coolant either.
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post #9 of 9 Old 08-14-2016, 04:46 PM
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The OP never came back...
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