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WTF is leaking all over my bay?

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Old 12-13-2011, 05:10 PM
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Default WTF is leaking all over my bay?

I had previously thought this was belt dressing used by the previous owner, but upon cleaning it all up REALLY good, it came back.

So what do you guys think it could be, it is very gooey, dried and follows the path of the serp. belt to a "T". Like it is getting slung off the belt. Color is a yellowy tan. Comes off pretty easy with liberal simple green. I'm guessing A/C Compressor lube, but it's a total guess right now. Coolant, Oil and trans fluid levels are all holding steady.

PICS.


Old 12-13-2011, 05:42 PM
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Have you checked your power steering fluid?
Old 12-13-2011, 06:00 PM
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Originally Posted by djfury05
Have you checked your power steering fluid?
Yes, just over the weekend, looked good. No noises under extreme turns either.
Old 12-13-2011, 06:04 PM
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Looks like AC refrigerant oil to me.
Old 12-13-2011, 06:05 PM
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This may sound weird but did you taste it? Any strange smells? Could be left overs from behind the pullies
Old 12-13-2011, 06:09 PM
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I doubt its refrigerant oil.. there are only like 5oz in our system i think.. if it were leaking oil, there would most likely be zero 134a in the system...
Old 12-13-2011, 06:27 PM
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I did not taste it, and its a bit hard to smell, because the only way to really get it off the engine is to spray it with a cleaner to break it down a bit, it's really sludgy. No drastic smell though.

A/C worked good, but the last we ran it could easily be 3 months ago. This is on a Trailblazer SS BTW.

Is there any way to check the oil level in the A/C compressor?
Old 12-13-2011, 06:30 PM
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Originally Posted by chaman
Looks like AC refrigerant oil to me.
Sorry for my ignorance, but are you saying it looks like refrigerant or the compressor oil? (Or maybe they mix together I don't know)
Old 12-14-2011, 12:55 PM
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Originally Posted by chaman
Looks like AC refrigerant oil to me.
Same here. I have removed refrigerant from a few automotive systems and it is that greenish/yellow/brown color from mixing with the compressor oil. I cant think of any other fluid in the engine bay that looks like that. Check the A/C charge on your system with one of those small cans of refrigerant from the auto parts store with the built in gauge. If it is low then there you have it. Or better yet, you could take it to a shop that does A/C and have them pressure test your system. Shouldn't cost too much.
Old 12-14-2011, 12:59 PM
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Originally Posted by 99socalFRC
I did not taste it, and its a bit hard to smell, because the only way to really get it off the engine is to spray it with a cleaner to break it down a bit, it's really sludgy. No drastic smell though.

A/C worked good, but the last we ran it could easily be 3 months ago. This is on a Trailblazer SS BTW.

Is there any way to check the oil level in the A/C compressor?
Unfortunately there is not a way to check the level. The refrigerant and oil are soluble together meaning that the refrigerant actually picks up some of the oil and carries it through the system with it to lubricate everything.
Old 12-14-2011, 10:52 PM
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Originally Posted by BlackLS1Bird
Unfortunately there is not a way to check the level. The refrigerant and oil are soluble together meaning that the refrigerant actually picks up some of the oil and carries it through the system with it to lubricate everything.
True, but if there is a leak in the system that is allowing oil out he could read the pressure with a gauge and see whether or not its low.
Old 12-15-2011, 04:22 AM
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Fluid harmonic damper silicone oil.
Old 12-15-2011, 07:56 AM
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Originally Posted by loyolacub68
True, but if there is a leak in the system that is allowing oil out he could read the pressure with a gauge and see whether or not its low.
Thats why I mentioned in post #9 to check system pressure.
Old 12-20-2011, 11:31 AM
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Originally Posted by David_viny
Fluid harmonic damper silicone oil.
Or the clutch fan, if you haven't deleted it.
Old 01-08-2012, 04:13 AM
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Originally Posted by David_viny
Fluid harmonic damper silicone oil.
Anyone care to elaborate how one would check this? I mean where on the damper should I be searching for a leak? It's peaked my interest as I'm still searching for the culprit and right now, there are no signs that I'm losing coolant. When the engine runs, it seaps a little water out the bottom, problem is, there is a giant front diff brace that prevents you from seeing anything besides things just being soggy.
Old 01-08-2012, 04:13 AM
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Originally Posted by Marc 85Z28
Or the clutch fan, if you haven't deleted it.
Switched it to Efans so I'm good on that.



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