coolant leak ?
#1
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Location: so cal
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Year: 1990
Model: Cherokee
Engine: 4.0
coolant leak ?
I have a 1990 jeep cherokee 4.0. It has a coolant leak only overnight.
I can drive for miles and miles and no leak, I can let it idle in my driveway forever and no coolant leak.
But if I let it set overnight it leaks coolant at the rear driver side of motor on the exhaust. I am stumped WTH.
I can drive for miles and miles and no leak, I can let it idle in my driveway forever and no coolant leak.
But if I let it set overnight it leaks coolant at the rear driver side of motor on the exhaust. I am stumped WTH.
#2
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Location: Washington, NJ
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Year: 2000
Model: Cherokee
Engine: 4.0
I have a 1990 jeep cherokee 4.0. It has a coolant leak only overnight.
I can drive for miles and miles and no leak, I can let it idle in my driveway forever and no coolant leak.
But if I let it set overnight it leaks coolant at the rear driver side of motor on the exhaust. I am stumped WTH.
I can drive for miles and miles and no leak, I can let it idle in my driveway forever and no coolant leak.
But if I let it set overnight it leaks coolant at the rear driver side of motor on the exhaust. I am stumped WTH.
#4
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Year: 1990
Model: Cherokee
Engine: 4.0
I cant see any hoses on the intake side. Is the intake manifold on these liquid cooled?
I checked the heater hoses and core area, all looks well, And the leak is on the intake side at the back of motor.
I checked the heater hoses and core area, all looks well, And the leak is on the intake side at the back of motor.
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#8
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Location: massachusetts
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Year: 2000
Model: Cherokee
Engine: 6cyl 4.0L
I had the same issue with a leaky freeze plug. It just so happens that this plug is located on the back of the head just inches from the firewall. I am pretty handy but wasn't ready to commit to pulling the engine or dropping the tranny. The leak was quite small but enough to cause me some problems with overheating. I was prepared to do a bit of cheating. I stumbled across a post about "water-weld" by JB Weld. It's an epoxy putty that dries rock hard in 1 hour. I cleaned the affected area very well and then cleaned it again. I used steel wool, emery cloth and throttle body cleaner on a clean rag. I was able to get a mirror back there to check it. It was good to go. I applied the "water-weld" and one hour later no leak. Drove it again today with no leaks. So far so good. I'll keep you all posted.
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