Go Back   F150online Forums > Powertrain & Mechanical > V8 Engines
Sign in using an external account
Register Forgot Password?
Register Photos Vin Decoder FAQ Members Search Today's Posts Mark Forums Read VendorsGarage




Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-18-2011, 03:09 PM
Junior Member
Garage is empty, add now
 
Join Date: Aug 2011
Posts: 7
2005 5.4 triton, knocking?

Hello all, I have a 2005 fx4 and just recently started knocking,(always has a little) always change the oil and use motorcraft 5-20. also tried some lucas but no better. It seemed to happen after the truck sat a while(two weeks) and I started it and it seemed to be missing then that cleared up but the knocking continues. could this be oil pump? it runs fine and pressure seems good what do you guys think? and does it just need a tune up? 156,000 miles
Reply With Quote
  #2  
Old 08-18-2011, 03:17 PM
Global Moderator &
Senior Member
2005 Ford F-150
 
Join Date: Mar 2005
Location: Burleson/Athens/Brownsboro, TX
Vehicle: 2011 Ford F150, 5.0
Posts: 22,680
Have the plugs ever been changed? Use the Advance Search and check out "cam phasers", see if this sounds like it.
__________________
Jim
Reply With Quote
  #3  
Old 08-18-2011, 03:30 PM
Technical Article Contributor
2002 Ford HD #04417
My Garage
 
Join Date: Apr 2009
Location: tapp'n it
Vehicle: 2002 FORD/HD #04417
Posts: 10,001
As Bluejay pointed out>>>cam phasers

Or it could be injector related>>> 2005 5.4 3v injector letter: Ford Customer Satisfaction Program 07M08
__________________
Reply With Quote
  #4  
Old 08-18-2011, 04:25 PM
Junior Member
Garage is empty, add now
 
Join Date: Aug 2011
Posts: 7
I have owned it since it had approx 40,000 and no plug changes yet, what about fuel filter?
Reply With Quote
  #5  
Old 08-18-2011, 04:27 PM
Global Moderator &
Senior Member
2005 Ford F-150
 
Join Date: Mar 2005
Location: Burleson/Athens/Brownsboro, TX
Vehicle: 2011 Ford F150, 5.0
Posts: 22,680
fuel filter should be changed about every 20,000 miles. that would not be the cause of the knocking, though. The transmission fluid and coolant need to be changed as well.
__________________
Jim
Reply With Quote
  #6  
Old 08-18-2011, 04:32 PM
Junior Member
Garage is empty, add now
 
Join Date: Aug 2011
Posts: 7
ok, so the knocking is fuel related or oil?
Reply With Quote
  #7  
Old 08-18-2011, 04:36 PM
Global Moderator &
Senior Member
2005 Ford F-150
 
Join Date: Mar 2005
Location: Burleson/Athens/Brownsboro, TX
Vehicle: 2011 Ford F150, 5.0
Posts: 22,680
Hard to say, but I bet it is mechanical. The cam phasers most likely and some go bad regardless which oil you use.
__________________
Jim
Reply With Quote
  #8  
Old 08-18-2011, 04:37 PM
Global Moderator &
Senior Member
2005 Ford F-150
 
Join Date: Mar 2005
Location: Burleson/Athens/Brownsboro, TX
Vehicle: 2011 Ford F150, 5.0
Posts: 22,680
The plugs should have been changed at about 65,000 to 80,000 miles.
__________________
Jim
Reply With Quote
  #9  
Old 08-18-2011, 04:45 PM
Junior Member
Garage is empty, add now
 
Join Date: Aug 2011
Posts: 7
I will get that done, also ballpark on those cam phasers to be fixed?
Reply With Quote
  #10  
Old 08-18-2011, 04:47 PM
Junior Member
Garage is empty, add now
 
Join Date: Aug 2011
Posts: 7
also i was told a dealer has to replace the plugs, can you do that on your own or is it to rough on a weekend mechanic?
Reply With Quote
  #11  
Old 08-18-2011, 04:48 PM
Global Moderator &
Senior Member
2005 Ford F-150
 
Join Date: Mar 2005
Location: Burleson/Athens/Brownsboro, TX
Vehicle: 2011 Ford F150, 5.0
Posts: 22,680
It may not be the cam phasers but check out this thread.

DIY - Cam Phaser Replacement

Again, use the Search and do some reading.
__________________
Jim
Reply With Quote
  #12  
Old 08-18-2011, 05:15 PM
Senior Member
2005 Ford F-150
 
Join Date: Jun 2011
Location: Dallas
Vehicle: 2005 Ford F150
Posts: 140
There are lots of things that could be wrong. With that mileage i would suspect cam phaser or vct solenoids if it only knocks at low rpm less than 1500. If it continues even as you rev the motor i would suspect a lifter or the timing chain tensioners/guides. Mine had both the lifter and timing tensioner guides shot at 172k even though the motor was clean with no sludge. If the tensioners are shot you will here a bad rattle at startup for 3-10 seconds.
Reply With Quote
Old 08-18-2011, 05:15 PM


 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are On
Refbacks are Off



All times are GMT -4. The time now is 04:55 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
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details

Search Engine Friendly URLs by vBSEO 3.5.2