x351 5.0 rough idle when off AC
#1
08-26-2018, 11:31 PM
x351 5.0 rough idle when off AC
recently i noticed it idles bad when i shift to P and AC off.
i would give it a few rev and the idling usually returns normal.
this aside, can the cam phaser/ tappets/ lifters / chain tensioners caused this ? the car still has ticking noise throughout the day though it ticks less when i add the engine oil.
been to a few mechanics, all says it is not the chain noise. some say it is the tappet not getting enough oil pressure and adding oil helps (which i tried). read up a fair bit on this problem and on ford f150 forum, the possibilities extended to these parts. is there any ways to correctly diagnose the cause ?
i would give it a few rev and the idling usually returns normal.
this aside, can the cam phaser/ tappets/ lifters / chain tensioners caused this ? the car still has ticking noise throughout the day though it ticks less when i add the engine oil.
been to a few mechanics, all says it is not the chain noise. some say it is the tappet not getting enough oil pressure and adding oil helps (which i tried). read up a fair bit on this problem and on ford f150 forum, the possibilities extended to these parts. is there any ways to correctly diagnose the cause ?
#3
11-04-2018, 06:34 PM
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