I have developed a coolant leak. I am pretty sure its the water pump ( the fan is whipping coolant all over the place). but there is also a small puddle around the base of thermostat housing any help would be appreciated the Jeep is a 93 with the 5.2L
You don't need help, you sound like you know the problem. Since the fan is spreading coolant everywhere it's probably throwing some on to the base of the thermostat housing.
I'd be checking the radiator supply and return hoses. If they are still the original it is likely they are leaking. Also watch the heater hoses. These hoses tend to get soft and balloon. A water pump leak is more likely to be pouring out the drive shaft and down the engine.
For the money, I'd start with hoses. Dry the leak with paper towel then check back for more leaks. Squeezing the upper hose will put a bit more pressure in the system and usually will show you the leak.
When you replace the hoses use new worm style clamps, the original pressure clamps are not considered reusable. Yea, they might work but the service guide says to trash them.
Glad the info helped. Save yourself future pain by replacing all the hoses now.
You can capture most of the coolant by siphoning off the radiator or by using a hose that just fits the drain plug and draining into a clean bucket. I just use the opportunity to replace coolant.
Did the '93 ZJ have those darned plastic tanks for the radiator like the later ZJ's? They can split and spray fine streams of water in enough places to make it very tough to see that it is the radiator.
What fits nicely if you have the fancy A/C and transmission cooler, etc.? I got mine replaced cheaply, but next time would rather not stay with plastic.
I honestly don't know? I had it done and the shop supplied the radiator, one they recommended. It has one less row of tubes but the tubes are much larger than the original if that's any clue? It's made for the vehicle and drops right in. I'm cool now in the worst Phoenix sunshine can do to me (110+F), slogging through sand washes, towing, etc. so it must be working?
Radiatorbarn makes all metal 2 and 3 core. you only need a 3 core if your hauling heavy loads or somewhere where the temps are high and you idle a lot. (or have off-road lights blocking lots of the rad)
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