2005 Ford F-150 Knocking noise

Tiny
RICHARD.TORRES05
  • MEMBER
  • 2005 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 72,000 MILES
I have a 2005 ford f150 5.4 3v an it has a knocking noise when im around 1000rpms an I was told the cam phasers had to b replace so I had them replaced an the noise is still there. What else can it be? And I also just changed out all my spark plugs
Saturday, July 3rd, 2010 AT 4:08 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Can you tell me aprox where the noise is coming from?
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Monday, July 5th, 2010 AT 7:25 PM
Tiny
RICHARD.TORRES05
  • MEMBER
  • 2 POSTS
It's coming from in the engine. It knocks around 1000 rpms but when I go past 1200 rpms or so it goes away
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Monday, July 5th, 2010 AT 10:50 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
If it is coming from the engine, I would guess it is a crank or connecting rod bearing. However, usually they get louder when under a load.
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Monday, July 5th, 2010 AT 11:45 PM

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