Antifreeze leak

[roger2003]

I'm wondering if anyone has run into a problem with leaking coolant only when the truck is shut down and it's cold out. The truck sits all night and it has to be below 40 degrees( which isn't a problem right now ). I know it's coming from the back of the engine and it won't leak if I plug the heater in. The leak is coming from the back of the engine so I can't see where it is leaking from. I've ruled out freeze plug, head gaskets, and egr. I am sure it is a contraction of a hose or fitting from the cold. An info would be helpful. Thanks.

 

[architect-builder]

Mine did the same thing a few years ago. Mine was a EGR system leak.

Barrett

 

[roger2003]

Thanks, I'll dig deeper into checking it out.

 

[HeavyAssault]

Check your t-stat housing and where the upper hose connects to the t-stat housing.