kcooper99

Had the dreaded coolant leak on my 2011 FX4 with 242,000 miles. My turbos were bone dry, the elbow on the reservoir was bone dry and I was getting coolant way back under the truck by the transmission pan! I decided to remove skid plate so I could get a good luck underneath and pressure tested the system. Low and behold I found the leak! It was coming from this connection. My question is, what is the best way to reach this thing? I can get my hand back there with the wheel well off. Is it a 19mm? Any tips or tricks would be greatly appreciated!

kcooper99

It is cold outside and this leak is rearing its ugly head again. Any thoughts or guides I can look at?

5.0nly

Can you take a picture of the leak on your transmission? I have the same problem I think. It’s all over the transmission. Any coolant pooling up on the ground?

reaganhall

Did you see white smoke and a burning smell? Is it worse in cold weather?

kcooper99

It is near the rear of the transmission. It almost looks like it is leaking from one of the pan bolts but it is not tranny fluid. There is also no smoke or burning smell. I found this video online that goes through the process pretty well. The passenger side issue that I am experiencing is covered more in the comment section.

m1ke

Hi,
were you able to fix this issue?
I have the same problem with my wifes 2016 Expedition.
Not sure what the best way is to get to the connected at the back of the head.