Leaking transmission coolant line

GARY RHINEHART

MEMBER
2004 GMC CANYON
0.5L
5 CYL
4WD
AUTOMATIC
250,000 MILES

My transmission coolant line is leaking at the radiator pretty profusely. I was wondering how hard is this to change myself and do I need any special tools.

I looked up the cost of the transmission coolant line itself and it seems pretty inexpensive but I don't want to get myself involved in anything I can't handle with such a high mileage vehicle and getting in over my head. It's night time now but tomorrow I can add some photos to make sure it's the transmission coolant line I'm looking at.

3 Replies

KASEKENNY

MECHANIC
18,907 POSTS

These lines are not that complicated. They can give you trouble as they are most likely covered in grime but they are not that bad.

I attached the process for your review.

Let me know what questions you have. Thanks

Images (Click to make bigger)

SPONSORED LINKS

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Sunday, August 30th, 2020 AT 7:25 PM

GARY RHINEHART

MEMBER
6 POSTS

Sounds pretty straight forward. Is it at all possible to remove the lines without dropping the transmission? I don't own a transmission jack.

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Sunday, August 30th, 2020 AT 7:33 PM

KASEKENNY

MECHANIC
18,907 POSTS

Anything is possible, but I suspect you will have two issues. One, getting the line out if the support is still there. It is pretty long so it may fight you a bit. Next getting access to the line on the transmission. It is pretty tight if you don't drop it down a bit. If you have a floor jack, you can support it with that and some 2x4's and straps assuming you are doing this on the ground. It is not the best but it works.

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Sunday, August 30th, 2020 AT 7:57 PM