2001 Ford F-150

Tiny
DUSTINLAMBIRTH
  • MEMBER
  • 2001 FORD F-150
I have a 2001 Ford F-150 4x2, standard. It has 107,000 miles on it. I hear a knocking sound when I accelerate. When the truck is in neutral, it's fine. I just put a new clutch in it about 6 months ago and new U-Joints. Anyone have any idea what the noise might be?
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Wednesday, November 28th, 2007 AT 2:35 PM

8 Replies

Tiny
MULEMAN
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How much of a donation does it take to get an answer?
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Monday, December 3rd, 2007 AT 1:40 PM
Tiny
JWALTH02
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Donations are not a requirement but they are appreciated. There is a very large amount of unanswered posts and very few moderators to help answer them. Donations get priority and we get to the rest when we can.

As far as your problem you say when it idles you don't hear anything? How about when you're driving put it in neutral and listen. Is it still there? Can you give me a general direction of where it might be coming from? Let me know.
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Friday, December 7th, 2007 AT 12:27 AM
Tiny
DUSTINLAMBIRTH
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Right, when the pickup idles, there is no clicking sound at all. Even when it's in neutral and driving - only when I accelerate sometimes you hear the clicking - it's not a constant. To me - the clicking sounds like it is coming from the front rather than the back. Clutch works fine and I thought the U-Joints would still be good, but maybe not?
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Friday, December 7th, 2007 AT 9:59 AM
Tiny
JWALTH02
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Only when you accellerate huh, does it happen every time you push on the gas? Let's try to narrow it down more. How about when it's parked and you hit the gas? Have a friend/family member rev the engine while you're under the hood listening. Let me know how it goes.
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Friday, December 7th, 2007 AT 5:27 PM
Tiny
DUSTINLAMBIRTH
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When the truck is in neutral and u rev the engine, there is no noise. When you put it in gear and start to accelerate, that's when you hear the noise.
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Sunday, December 9th, 2007 AT 1:30 PM
Tiny
MULEMAN
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I have the same problem. It sounds like the valves are rattling but it's not the valves
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Wednesday, December 19th, 2007 AT 11:30 AM
Tiny
FLEXY5
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If you could feed me one bit of information, it might help us out. Is the clicking noise relative to engine RPM or vehicle speed? I have two theories, but I would like to know this info first.
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Wednesday, December 19th, 2007 AT 6:12 PM
Tiny
MULEMAN
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Sorry for high jacking your question. I don't know about his clicking but mine clicks or rattles up tp 45-50 mph or all the time when I am pulling a trailer. It makes no noise in neutral. I had just had the transmission flushed and differential fluid changed when this started.
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Wednesday, December 26th, 2007 AT 8:18 AM

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