Hello All,
Have had a weird leak going on for a few months. Every once in a while Ill pull out and notice there is a bit of radiator fluid under the truck. I check under the truck and can't really tell where its coming from b/c the puddle is normally around where the oil drain is - so its a bitch to trace around - That and its so very intermittent.
The last time I noticed it was about a month ago. I was off work today - went to the truck and noticed it again - a bit more than normal. I actually had time today - I crawled under the truck and eventually traced the issue to the front of the truck, specifically to this connector.
Pic attached.

Before I go tearing **** apart under there - anyone have this happen to them before? Is it just some silly o-ring fix again?
Just curious on some opinion before I get to work on it this weekend

Pic was taken from under the front of the truck


Sorry 2013 - FX4 - 5.0L
TIA
Rob

 

Not knowing the engine type its hard to say for sure...

I had a 3.5 eco that had a similar leak as you describe...turned out being the water pump.
Based on where your leak is, it appears to be in that area.

 

I would say the quick connect o-rings. Mine does it when cold ambient temps. Actually will be replacing tomorrow morning. Lots of videos on this exact issue.

 

Common issue, that t-fitting has bad o-rings. Mine leaked last year after it sat for 2 months. Swapped the part, no issues since.

 

Yes, that is a very common leak point. See sig.

 

Ok cool - I replaced them already on the upper part - glad I bought a few extras - sucks when the damn fluid costs much.

 

As I recall, they are different sizes. Check that thread for the facts.