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post #1 of (permalink) Old 04-29-2009, 01:56 PM Thread Starter
 
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Post oil leak from radiator!

2001 Wrangler SE, 4cyl. I finally took out out from my maiden voyage offroad in the mojave desert and the eldorado jeep trail near teh ciolorado. Nothing serious, just like grade 2/3. Was brilliant-I love this jeep. My drive up from LA to Vegas was also really comfy-so these Jeeps are fine on the freeway. Anyway next weekend I drove it up to the sierras and parked it for 2 days. When i returned there was a clear oil/lubricant leak from the radiator. It was coming from a hole on the bottom passenger side of the radiator and dripping onto the bars below before hitting the ground. My friend said it could be transmission oil as it gets cooled also.??..
Any ideas or ways to fix it? There is no warning light on.
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post #2 of (permalink) Old 04-29-2009, 02:14 PM
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Is the hole damage, or something that's supposed to be there?

Automatic transmissions have their oil cooled in the lower radiator tank. If what's on the dipstick matches what's leaking, you've found your problem. The fix is to take it to a radiator shop. Let them decide whether it will be cheaper to repair the radiator or replace it.

If you have a do-it-yourself transmission, there's nothing in the radiator but coolant. Or shouldn't be, anyway.

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post #3 of (permalink) Old 04-29-2009, 03:32 PM Thread Starter
 
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the hole isn't from damage; there is a series of say 8 little round holes along the bottom of the radiator, and the fluid was coming from one of them. to me it looked and felt like transmission oil, and was still leaking after 2 days standing, so if it was coolant it would have dried up?
Anyway it is a manual stick. so maybe a bust radiator.
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post #4 of (permalink) Old 04-29-2009, 05:42 PM
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The water in the coolant will evaporate, but the antifreeze won't, and it has an oily feel to it. I don't recall ever seeing a clear antifreeze, but that doesn't mean there isn't one.

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post #5 of (permalink) Old 04-30-2009, 04:26 AM
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Is it possible the previous owner had swapped in another radiator for what ever reason and it happens to be one from a auto tranny jeep? Maybe left over tranny fluid from a swap....... Ive seen people run power steering through the coolers as well......

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post #6 of (permalink) Old 04-30-2009, 05:22 AM
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And the transmission coolant system should have only two holes. I don't know why there would be eight. How big are they? Drilled or punched? Evenly spaced or random? All the same size? Threaded? Round or irregular? This really has me puzzled.

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post #7 of (permalink) Old 04-30-2009, 04:52 PM Thread Starter
 
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regular drilled holes. i'll take a picture later today and post it. actually it hasn't leaked in the past 5 days.

Last edited by dlloydj; 04-30-2009 at 05:05 PM.
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post #8 of (permalink) Old 05-01-2009, 02:07 PM Thread Starter
 
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here it is. sorry the holes weren't on the radiator but the plastic housing behind it. It hasn't leaked for the past week But was dripping a lot after i had left it for 2 days last weekend.
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File Type: jpg radiator.jpg (75.6 KB, 1 views)
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post #9 of (permalink) Old 05-01-2009, 02:15 PM
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If the oil leak stopped, you better check your engine oil dipstick to make sure it didn't stop because there isn't any more to leak.

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post #10 of (permalink) Old 05-01-2009, 03:02 PM
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So the leak isn't from the radiator at all, but some place on the front of the engine. Could be the crankshaft seal, could be coolant leaking from the water pump.

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