not to bring back an old post but I started my spring cleaning of my engine bay and noticed my transmission cooling lines looked wet like seeping or sweating. Nothing on the ground and the car runs and shifts fine.
So I guess I have the dreaded transmission cooling line leak where the rubber meets the metal tube interface. That looks like exactly where it is coming from because that is the dirtiest part.
They were always dirty every year and I thought it was just sweating along with road grime. I always just cleaned them and went with my business.
I have been reading on other GM forums like truck forums etc that is pretty common with GM vehicles.
Is there a permanent fix for this because I don't want to be giving money to a problem that is going to happen again.
From the forums it looks like it has been an issue with GM cars and trucks for while so I guess GM doesn't feel the same.
I was thinking of doing something like this and put this around where the rubber and metal tube meet.
LeakSeal® Self-Fusing Tape
If getting it fixed at the dealer isn't going to permanently fix the problem I would rather just buy that product and do my best to fix it that way.
Is there a TSB on this issue?
Here is how one guy fixed it on his truck.
One side note don't wipe them off when the car is hot cause the lines are pretty close to the turbo and well that turbo tends to get hot. Wonder if this was the cause of some the fires that cause the shield hack.
So looking at the parts here:
The price on the parts don't look to bad even if you replace both the inlet and outlet tube.
I see the connections on top of the transmission for the inlet and outlet tubes but not sure about the connections at the bypass valve. Are those connections hard to undo and what is involved?
Doesn't really seem like it should cost too much to have both the inlet and outlet tubes replaced.