'94 XJ coolant leak when hot
#1
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Year: 1994 1993
Model: Cherokee
Engine: 4.0
'94 XJ coolant leak when hot
OK I know this isn't much to go on but hopefully just off the tops of peoples heads I can get a rough idea where to start. My '94 XJ (4.0L auto) has started to leak coolant but it won't start leaking until it gets fairly warm. Like 4 minutes of idle. The leak looks like it's coming out from behind the crankshaft pulley but obviously it could be coming from higher up and just running down. I don't see any leaks from up above looking down. It's not gushing out but is a steady small trickle. The pulley for the water pump doesn't feel like it has any play in it but the belt is pretty tight.
#3
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+1 Shaft may not have play because the bearings are still tight. There is a seal to keep coolant from reaching the bearings. Yours could be bad.
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Year: 1994 1993
Model: Cherokee
Engine: 4.0
Ok after crawling under my Jeep and cleaning everything down then removing the fan shroud and electric fan and using a bright LED work light and a mirror I finally could see the trickle of coolant was coming out from behind the water pump as I had hoped. It still sucks but it beats a block leak. But since I just replaced it a couple of years ago with a cheapie one from the auto parts store I may upgrade.
Thanks to all who replied. I figured it was the water pump but just wanted to hear some others say it so I could sleep better.
Thanks to all who replied. I figured it was the water pump but just wanted to hear some others say it so I could sleep better.
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Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
Glad you figured it out. In the future a quick pressure test will tell you.quickly where the leak is. You can "rent" them at autozone if you don’t have one.
#7
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Year: 1994 1993
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Engine: 4.0
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