attn: GM mechanics -- weird leak problem - Team Camaro Tech
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post #1 of 7 (permalink) Old Apr 23rd, 04, 02:27 AM Thread Starter
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Eric
 
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My '02 mini-van (Venture with 3.4L) is leaking what appears to be green antifreeze from under the radiator core support.

The strange thing is that everything now uses Dexcool coolant which is pinkish-orange. The dealer guy thought I was nuts when I told him it was leaking green . . .

They replaced the intake gasket the first time and its leaking again after only a couple days.

Any ideas?

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #2 of 7 (permalink) Old Apr 23rd, 04, 10:59 AM
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David
 
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it is probably flourescent refrigerant dye in the a/c system. it is green and those vans have a tendency for the condensor to leak. i am a service advisor at a chevy dealership

67 RS marina blue, 406 ,M20 4spd, 9". car has been in my family since new!

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post #3 of 7 (permalink) Old Apr 23rd, 04, 11:04 AM
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David
 
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are you sure they didn't replace the dexcool with green antifreeze?

67 RS marina blue, 406 ,M20 4spd, 9". car has been in my family since new!

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post #4 of 7 (permalink) Old Apr 24th, 04, 04:15 AM Thread Starter
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Eric
 
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Yes, I swear the anti-freeze hasn't been touched ---- only 25k miles on the car and I have done all the service except a warranty fuel pump replacement at about 15k miles.

The stuff is oily and thick feeling . . . I wondered about the A/C condenser but didn't think the A/C had anything green in it.

Its actually a yellow green ---- looks almost flourescent like a yellow highlighter only with a green tint.

Thanks!

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post #5 of 7 (permalink) Old Apr 24th, 04, 07:44 AM
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Don
 
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I agree it sounds like refrigerant oil.

If you have access to a black light, the dye should be visible, and will pinpoint the source of the leak.

It will be a bright yellow.

Don ~ TC Member #15 ~
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post #6 of 7 (permalink) Old Apr 24th, 04, 09:22 AM
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David
 
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definately refrigerent dye. zz430 is right, shine a black light on it.

67 RS marina blue, 406 ,M20 4spd, 9". car has been in my family since new!

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post #7 of 7 (permalink) Old Apr 26th, 04, 01:54 PM Thread Starter
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Eric
 
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67freak, you nailed it. Thanks.

The dealer called me back Friday and said they couldn't find anything wrong --- I asked them to check the a/c condenser like you said. They did as I asked and this morning they called me and told me they had found a leak and replaced the a/c condenser.

ps. and I should also give credit to Berger Chevy who actually LISTENED to their customer. That seems kind of rare these days [img]graemlins/thumbsup.gif[/img]

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