Justin33
Senior Member
- Joined
- May 16, 2015
- Posts
- 489
- Reaction score
- 115
- Ram Year
- 2015
- Engine
- Hemi 5.7
Yeah mine doesn’t look cracked or has to be the purge valve up top or the pump by the tank does P4057 matter in regards to pinpointing? I think that’s a large leak? I know I can take engine cover off and try and blow through that purge valve to know if it is bad.I would say 99/100 times it's not the cap.
My cap did look terrible, the o-ring had some small cracking going on, don't know why, but wasn't the fix.