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  #1  
Old 07-20-2009, 09:56 PM
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Join Date: May 2008
Location: Minnesota
Vehicle: 2004 Ford F150
Posts: 29
Help! My F150 sounds like a diesel

I have noticed my truck sounding a little off lately.....sounds like a diesel. I have actually had two people walk up to me in parking lots asking if it is a diesel. Well it's not. I have a 04 Screw Lariat. What could this knocking sound be?
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  #2  
Old 07-20-2009, 10:20 PM
glc glc is offline
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Join Date: Dec 2006
Location: Joplin MO
Vehicle: 2003 Ford F150
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If you have a 5.4, it's probably the cam phasers. LOTS of threads on that here.
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2003 F-150 XL RCSB 2wd 4.2 M5OD 3.55 LS
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Old 07-20-2009, 11:45 PM
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Join Date: May 2008
Location: Minnesota
Vehicle: 2004 Ford F150
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wow.....looks like I have my work cut out for me. Sounds like it doesn't do any damage, just an annoying noise??????

btw....what the heck is a cam phaser??
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  #4  
Old 07-21-2009, 12:04 AM
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Join Date: Jul 2009
Posts: 2
You have a problem

the timing chains are slopping and cutting up the cover your oil pump will be next thats the noise you here
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  #5  
Old 07-21-2009, 12:22 AM
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Join Date: Jul 2009
Posts: 2
My Friends said the same thing too.

When you pull the front cover Looks like a big Y look at the inside of it Metal will be missing Guess where it goes, Right to the oil pickup tube and blocks the screen.
Timing chains get less oil, wear more, and start slapping anthing close to them. I have a motor that is seiezed at this time and will be pulling it out this week.

Last edited by Danny Ratliff; 07-21-2009 at 12:26 AM.
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  #6  
Old 07-21-2009, 05:11 AM
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Join Date: Dec 2004
Location: poquoson virginia
Vehicle: 1981 ford bronco
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The reason the chains slack is that the tensioner o rings fail causing a loss of oil pressure. I have fixed several without further complications from the aluminum in the pan.
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Old 07-21-2009, 05:11 AM


 
 
 
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