VCT solenoids or cam phasers? - Ford Truck Enthusiasts Forums



2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine

VCT solenoids or cam phasers?

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 12-18-2012, 10:01 AM
heatseaker1 heatseaker1 is offline
New User
Thread Starter
 
Join Date: Oct 2005
Posts: 10
heatseaker1 is starting off with a positive reputation.
VCT solenoids or cam phasers?

Ok, here's the scoop. I've got a '06 xlt with a 5.4 3V and several months ago it started acting up. At first it was just when in reverse then it was anytime i was operating under low rpms like in a parking lot or such. It would miss/knock/shudder. Kinda sounded like a bad running diesel. It also kinda rattled during acceleration up to 1500 rpms or so. It would only do this after being warmed up. When cold it was fine but after getting warmed up it got to the point that it would act horrible. I replaced the timimg chains, tensioners and guides thinking that was the issue and it was not. After reading a bit on the cam phaser and VCT issues that folks have had with this engine I unplugged the VCT solenoids and low and behold the noise is gone, the missing/bucking/diesel sound is gone and there is little to no noticible loss in performance. Now I don't want to drive it like this forever but will until I determine the cause. I was wondering if anyone can give me any clear insight into what is the culprit. Is the solenoid or the phasers?


Thanks

Last edited by heatseaker1; 12-18-2012 at 10:03 AM. Reason: formatting
Reply With Quote
  #2  
Old 12-28-2012, 04:42 PM
JoSHN JoSHN is offline
Senior User
 
Join Date: May 2008
Location: Americas' hat (Canada)
Posts: 445
JoSHN is starting off with a positive reputation.
Since you have the easier valve covers to do this on, I would suggest pulling out your VCT's just to inspect and possibly eliminate them from the equation.

VCT Solenoid
You should be able to use this step by step and get to the VCT's with ease. Unless, however, your valve cover does not have the easy to remove seal around the VCT's.

I replaced the VCT's on my 08 (which is not as easy as the earlier years as you have to remove the entire valve cover to get to them). Once the VCT was out, I noticed damaged screens on it. That narrowed it down pretty quickly for me.

Also, if you do end up replacing them, as unlikely as it sounds you should call up your local stealership for the part. It might actually be cheaper. At least it was in my case. By $120.
Reply With Quote
  #3  
Old 12-28-2012, 04:51 PM
JWC 3's Avatar
JWC 3 JWC 3 is offline
Post Fiend
 
Join Date: Dec 2012
Location: Tennessee
Posts: 7,751
JWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputationJWC 3 has a superb reputation
I have replaced several solenoids for noise and running concerns . Not just Ford products . The screens seem to be the main issue . They plug and or come apart . Make sure you use the correct weight oil also .
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2005 5.4 ticking 05fordf150 2004 - 2008 F150 1 04-25-2016 09:13 PM
08 f150 knock f150guuy 2004 - 2008 F150 1 09-04-2014 01:59 AM
Phasers or VCT solenoid?? shepshu 2004 - 2008 F150 24 03-07-2014 12:00 AM
Questions about VCT System - P0012 and P0021 Codes jtillery Expedition & Navigator 6 02-15-2014 02:49 PM
04 f150 5.4 3V timing jumped P0345 VINZB Modular V8 (4.6L, 5.4L) 0 05-26-2011 11:08 AM


Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 05:27 PM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.