JustWarminup
Member
Hey all!
Have a 2007 Expedition with a misfire on cyl #3 under heavy acceleration above 3500RPM. At all other times it runs great. Also sounds like I get some ticking and lash on the valve train during 4500rpm and up.
Changed plugs, coils, injectors, VVC, phaser, Rollers, lash Adjusters. everything short or tearing the head off.
Cats both run exact same temps and no signs of clogging.
did the HV360 oil pump (believe that was the # [the high volume version of oil pumps]) Mechanical Lash Adjusters, Chains, Guides.
Trying to save myself the effort of a tear down again, anyone have any other suggestions?
Compression test is next move and will see if how a leak down performs. Over an hour or two.
Have a 2007 Expedition with a misfire on cyl #3 under heavy acceleration above 3500RPM. At all other times it runs great. Also sounds like I get some ticking and lash on the valve train during 4500rpm and up.
Changed plugs, coils, injectors, VVC, phaser, Rollers, lash Adjusters. everything short or tearing the head off.
Cats both run exact same temps and no signs of clogging.
did the HV360 oil pump (believe that was the # [the high volume version of oil pumps]) Mechanical Lash Adjusters, Chains, Guides.
Trying to save myself the effort of a tear down again, anyone have any other suggestions?
Compression test is next move and will see if how a leak down performs. Over an hour or two.