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GMC Jimmy Oil and other Fluid Leaks

19 messages,  Last post on Jan 20, 2013 at 7:10 PM

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What is this discussion about? GMC Jimmy, Oil, SUV

Messages Page 2 of 2

#10 of 19 Radiator non-stop leaking... weird... by killrwhale

Aug 01, 2007 (2:44 pm)

Ok, I have had nothing but problems with the radiator in my '96 GMC Jimmy. First my heater core is cracked, so I have the radiator fluid leaking into my car cabin.
 
But now, I have to add water/radiator fluid every day. But when I add it past a certain spot, it starts leaking out the bottom of my car. I am able to drive my car without over heating even though this happens. But when I stop and park the car (turn off) radiator fluid comes pouring out the bottom of my car again. So I can only stop my car about 3 times before I have to refill the radiator as far as it goes until it leaks out the bottom, or I will overheat BADLY.
 
Any clues what this is? haha

#11 of 19 Hmmm by killrwhale

Aug 17, 2007 (12:29 am)

still doing it, weirdest thing ever, haha

#12 of 19 Re: Hmmm [killrwhale] by steve_ HOST

Aug 17, 2007 (8:30 am)

Replying to: killrwhale (Aug 17, 2007 12:29 am)
That's a stumper.
 
Try posing over in the Cooling Systems: Problems & Solutions (Radiator, Fan, etc) discussion where more people will see your question.

#13 of 19 Re: Radiator non-stop leaking... weird... [killrwhale] by tidester

Aug 17, 2007 (12:37 pm)

Replying to: killrwhale (Aug 01, 2007 2:44 pm)
But when I stop and park the car (turn off) radiator fluid comes pouring out the bottom of my car again.
 
It sounds like when you turn off the engine you're getting thermal expansion of the core because coolant is no longer circulating. I wouldn't go much longer without repairing or replacing it.
 
tidester, host
SUVs and Smart Shopper

#14 of 19 Re: Radiator non-stop leaking... weird... [killrwhale] by jkash76

Aug 24, 2007 (6:54 pm)

Replying to: killrwhale (Aug 01, 2007 2:44 pm)
I have the same problem with my 1999 Chevy Blazer pouring radiator fluid on the ground. Have you figured out what it is yet?

#15 of 19 Re: GMC Jimmy Radiator fluid leaking into car cabin. [killrwhale] by brok

Jul 12, 2009 (10:36 pm)

Replying to: killrwhale (May 22, 2007 2:11 pm)
My problems was some what your problems were,had too buy new radiator for GMC problem fix no high temp.runs great buy GMC parts.

#17 of 19 99 GMC Jimmy Oil Leak above Oil Drain Plug by bryceb4

Apr 04, 2010 (4:20 pm)

I've had a slow oil leak for the last 4+ years and finally decided to address it. From reading online and looking into it, it appeared it was the oil lines from the engine to oil filter housing and there to the radiator. I replace both of these sets of hoses this weekend, but now I look and right above the drain plug there seems to be another leak. I cleaned any spilled oil up very well after the job, so I'm sure this is a new leak.
 
I wish I had a camera under there, but perhaps someone knows what I'm talking about. There is the oil pan drain plug and then just above that is another drain plug, which right below that is where the leak seems to be coming from. It's not red tranny fluid as far as I can tell...
 
Any ideas? Is this something easy to fix?

#18 of 19 Re: 99 GMC Jimmy Oil Leak above Oil Drain Plug [bryceb4] by bryceb04

Apr 07, 2010 (2:26 pm)

Replying to: bryceb4 (Apr 04, 2010 4:20 pm)
Ok, I looked at it closer, it looks like the rear main seal that is leaking. Does anyone know good step-by-step directions on this kind of job? I figure I'll have to drop the transmission, but has anyone else done this before on their own that can share some tips?

#19 of 19 2000 Jimmy oil leak by tracer69

Jan 20, 2013 (7:10 pm)

I have a 2000 Jimmy sle with pulling package 4.3 vortech engine. I checked the oil 1 day and it was 2 qrts. low. It has never leaked oil in the past or burned oil. I put oil in it and topped it off. Then drove it for the day. The next day I checked the oil again and it was low again. I checked the radiator fluid and it was milky. so I checked the oil again and there was no water in the oil. But oil is in the radiator. O'rielly's said it might be a censer above the water pump. And it doesn't overheat. Any Ideas. thanks

Messages Page 2 of 2

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