06/22/2026
GEN2 EcoBoost coolant line leak? Here's why.
That rubber bushing sealing the factory hard lines wasn't built to last forever. Heat expands and contracts it, coolant packs deposits into the joint, the bushing moves around, and it starts to leak. Not as common as the GEN1 failure, but we're seeing it more and more as these trucks age.
Our fix: lose the bushing, go AN.
Reliability + power starts with fixing the weak links. This is one of them.