Question about 1993 Ford F150 SuperCab

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06 F150 5.4 noise under truck

Hello, I have a 2006 F150 4x4. When I'm driving up a hill or when the truck is under a load I have a noise coming from under the front to middle driver's side. It sounds like i'm dragging a plastic trash bag. Has anyone else heard this noise our have a solution?

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I had similar problem with my 05. I pulled the top off the 4x4 vacuum engagement (passenger side firewall) while running and flushed it with wd40,, noise quit..

Posted on Nov 12, 2014

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Could be the clutch plate under pressure

Posted on Feb 23, 2012

  • carolsman
    carolsman Jan 14, 2013

    Mine is an automatic and have the same "whirring" sound on mild acceleration and going up slight hills in high gear. Not an engine noise.


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06 F150 5.4 noise under truck

I have never heard this noise like you describe and I was a dealer tech for 25 years

Feb 23, 2012 | Cars & Trucks

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From past experience in my 40 years of working on engines, under a load going uphill any engine can make noises at those times. It is probably a worn cylinder wall or wrist pin. In time it will make this noise on level ground so my advice is to part with this car as soon as you can of pay to repair it

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Up hills & under a load --could be the EGR Valve
as you have a high vacuum load

The temp goes up on hills & yes the coil packs
could break down. That won't show up in the service
bay the way a dealer tests it.

Not the Throttle Body or Injectors
Sounds good & makes them money
That is what they do,after 3 visits & parting
with your money, then they will work on the misfire
Sad isn't it

Never go to a dealer. Try a local shop

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Car is bucking on hills but on flat it drive and shifts fine , it does need a cv joint

May be time for some new plugs & wires. A little maintenance such as fuel filter, air filter etc, if not done lately, wouldn't hurt either. Try going up hill with full tank & 1/4 tank, just to see if any difference, but I'm betting on plug wires breaking down under load, especially if they are getting old.

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