Cam phasers - F150online Forums

Cam phasers

Old 09-13-2018, 03:54 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 4
Cam phasers

Iím about to change the timing set on my 5.4 and was wondering, if I replace the cam phasers to the locked kind, what else has to be done?
Old 09-13-2018, 05:38 PM
Technical Article Contributor
Join Date: Jan 2007
Location: Vernon, NY
Posts: 8,460
You'll likely need a tune and I recommend a Melling oil pump.
Old 09-13-2018, 09:43 PM
Senior Member
Join Date: Jan 2002
Location: Wilmington,NC
Posts: 4,515
Do you know what postion the locked ones will lock your cams, in the fully advanced, fully retarded, or somewhere inbetween?
Old 09-14-2018, 10:10 AM
F150Torqued's Avatar
Senior Member
Join Date: May 2015
Location: San Antonio, Tx
Posts: 301
"Fully Advanced" - the position that the vvt system positions cams at idle (below 800 rpm), at heaver load conditions, and at higher rpms, and at deceleration. All other conditions (at gentle driving / acceleration, at cruise, light pulling) - the ECU employs some varying degree of cam retard.

Thread Tools
Search this Thread
Quick Reply: Cam phasers


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: