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Unread 07-10-2006, 09:57 PM   #1
CherokeeClassic
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Thermostat caused me to have a leak?

So today I left my jeep running (98 cherokee classic) for about 10 mins (100 degrees outside) with the air on. I came outside and my return line to the water pump was leaking at the clamp. Possible the thermostat wasn't working and causing back pressure and making the hose and clamp leak? So i went and got a 190 thermostat and installed it. Refilled everything and my temp gauge is really stable now and no leaks.... anyone else seen anything like this? thanks

stu

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Unread 07-10-2006, 11:21 PM   #2
Pizza Man!
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I saw my Grampa make a new gasket for the t-stat housing on his Bronco II, using a peice of asbestos, a utility knife and and a ball-peen hammer on the side of the road once, when I was a kid.
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Unread 07-11-2006, 07:50 AM   #3
Thayer
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Quote:
Originally Posted by CherokeeClassic
So today I left my jeep running (98 cherokee classic) for about 10 mins (100 degrees outside) with the air on. I came outside and my return line to the water pump was leaking at the clamp. Possible the thermostat wasn't working and causing back pressure and making the hose and clamp leak? So i went and got a 190 thermostat and installed it. Refilled everything and my temp gauge is really stable now and no leaks.... anyone else seen anything like this? thanks

stu
The hose and clamp sees that "back pressure" everytime you start your car when it's cold. Maybe the clamp was just loose or the hose wasn't seated well...?
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Unread 07-11-2006, 07:57 AM   #4
xjmatt
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I'd be more weary of the hose and clamp than the T-stat. I've seen the return hose wear through above the clamp because the hose is in such a tight position and rubs against the head with the normal engine vibration. I'd pull that upper hose and take a good look at it especially around where the clamp seats.
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