New leak - Transmission cooler lines? Photos inside

Freebeer187

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My 2001 GTP has always had a small drip oil leak which is from the oil pan gasket. Recently I noticed a large pool of what I though was oil in the drive way. It was diluted but it was the diameter of a frisby. I brought the car in the garage and lifted it using my ramps. Even for the 20 minutes it was in the air, it accumulated a quarter size pool of oil. Oddly enough, it was located nowhere near the engine, rather it was near the radiator.

I examined the fluid and it has a red tint to it. Looking closer it seems to come from two blistered pipes that run from the transmission into the radiator. The entire bottom level run of these two pipes are rusted and blistered. :rollpicard: I did my best to take photos, and I could be wrong about where the leak is coming from.

Looking directly down from the top of the engine, you see the new dime sized fluid drop


A saturated plastic wire shield near the radiator


A view from under the car. This is the scrape protector directly under the radiator. Notice the oil begining to drop


Another view with a closer look at the plastic soiled wire cover


Another view of the rusted junk


This is the fluid that dropped


Notice the color, that is brownish/red


A quick and shitty shot of the inatke manifold to show there are no leaking oil trails


These next two photos are the best shots I could get of the rusted pipe. It is in the center of the photo


Notice the saturated/rusted pipe in the center


I believe what I need and what is failing is:
ACDELCO 10330105
ACDELCO 10330106


I am assuming that this is what is leaking, but I am hoping someone who has been there and done that can confirm my suspicion. Is there any other component I should be looking at? How tough of a job is this? How much would I expect to pay at a shop? The parts seem to round about $80.

Thanks for looking!
 

Freebeer187

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Ordered the parts and I'm taking it to a shop on Tuesday. Going to replace both lines. Just hoping it's not leaking from the radiator. They quoted $80 in labor. Another shop in the area wanted $320 in labor lmao.
 

RICH17

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I didn't even see this till now. It's a really easy job on a lift so a hour of labor sounds about right.
 

RICH17

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You're going to lose a bunch of fluid as well so prepare to have to buy some
 

P40E

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The lines will usually leak at the rubber part of the lines where the crimps are that hold it to the metal part of the line .

Hopefully the bottom of the radiator or its seams aren't leaking .
 

BrianG

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Definitely sounds like you're describing the trans cooler lines, and the picture of the part you purchased is definitely that. Make sure you get the right part for your year car, I seem to recall reading something last summer about the fittings having changed on the transmission for the feed/return to the cooler.
 

Slow Buick

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Don't even need a lift. I did them on my garage floor
 

Freebeer187

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You're going to lose a bunch of fluid as well so prepare to have to buy some
I was curious about this and if the shop would want to do a trans fluid flush. I've heard too many horror stories about having the trans flushed and then it fails soon there after. I think I will ask them to not flush it. I know its tough to say but how many quarts do you think I should bring/need? I checked the dipstick and for sure there is fluid in the trans.
 

RICH17

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Bring two gallons. Have extra JIC.

And don't flush it.
 

RICH17

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Yes but that seems pricey. They usually have store brand for ten bucks or so.
 

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