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strange noise durring accelerating

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Old 02-21-2017, 07:48 PM
renato matos renato matos is offline
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Originally Posted by awq134 View Post
This has happened about half a dozen times while accelerating. It sounds sort of like it's between a scratching noise and a rattling noise. It's only happened at highway speeds 50-60 mph while accelerating and will stop when i let off the gas. there have been a few times that i can get it to come back if i step on the throttle again, but will not duplicate every time. any ideas?
​​​​​​ did you find out what is making the noise in your truck my truck is making the same thing I have no idea what's wrong with it and I took to a Ford dealership they told me to change the tie rod and a vacuum line and solenoid for the 4x4 and it's still not working
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Old 07-10-2017, 10:58 AM
stephenfontana stephenfontana is offline
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I have the same exact problem at 135K miles.... I read the forums and told the mechanic about vacuum leaks and actuators and MAFs etc. He took truck for a ride, stopped, went under truck, banged on muffler a bit, adjusted a heat sheild that lies over muffler, and sound is gone, ...for now. So I dodged a bullet, but that isn't to say it's not a vacuum leak as I can't shift into L4 in winter So I might have to bring it in this fall season.
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Old 07-10-2017, 11:06 AM
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Vacuum has no effect on the operation of 4L everything at the transfer case is electric. A vacuum problem would affect 4h and 4l equally.

Are you shifting to neutral with the truck at a full stop to go into low range?
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1999, 2010, 60l, accelerate, accelerating, engine, f150, ford, gas, giving, making, noise, rattling, sound, strange, truckfunny

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