I read in MM&FF that most of the oil that accumulates in our inlet boots and TB area is caused by oil being sucked from the valve seals during hard deceleration, and that replacing the oil filler cap with a breather will help to reduce this.

I have heard that doing this without a chip programmed for this mod will set a MIL or at least a soft code...

Does anybody know for sure? Thanks for the help!

 

ttt

 

A quick search came up with:

https://www.f150online.com/forums/sh...threadid=58238

https://www.f150online.com/forums/sh...threadid=53199

https://www.f150online.com/forums/sh...threadid=45644

https://www.f150online.com/forums/sh...threadid=34149

 

Did a 13.37 with a breather on the passenger side valve/cam cover. No chip. Then I did the airbox mod and K&N with no problems. THEN I got the chip and pulley.

 

Emissions arguments are funny! Thanks for the links.

joe

 

Thanks for the help guys...

If I do this, should I do both the oil filler cap and the drivers side hoses as well?? or will the oil filler cap be good enough?