F250 whine while decelerating
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Joined: May 2011
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F250 whine while decelerating
Looking for any ideas here.
I have a 94 Ford F250 460 gasser with 75k miles and a rebuilt transmission. I have a strange whine that is most noticeable while decelerating.
It is harmonic, in that while slowing from just about any speed, it starts high and goes lower, then starts high and goes lower again, repeating until the truck comes to a stop. "Waa waa waa waa...." where each "waa" lasts about a full second.
It is not related to engine speed. It occurs whether in gear, or in neutral, and changing the RPM's while in neutral does not change the pattern heard.
I can't really tell where the sound is coming from - which made me think transmission, but I don't know. It's not a loud sound at all, but it's noticeable.
Any ideas?
I have a 94 Ford F250 460 gasser with 75k miles and a rebuilt transmission. I have a strange whine that is most noticeable while decelerating.
It is harmonic, in that while slowing from just about any speed, it starts high and goes lower, then starts high and goes lower again, repeating until the truck comes to a stop. "Waa waa waa waa...." where each "waa" lasts about a full second.
It is not related to engine speed. It occurs whether in gear, or in neutral, and changing the RPM's while in neutral does not change the pattern heard.
I can't really tell where the sound is coming from - which made me think transmission, but I don't know. It's not a loud sound at all, but it's noticeable.
Any ideas?
Elder User
Joined: Aug 2010
Posts: 567
Likes: 1
From: Vancouver, WA
If it's not related to engine speed or if it's in gear or not, I doubt that it is the transmission. Try putting your truck up on "secure" jacks with the wheels well off the ground and see it this can help you chase it down. Have all four wheels off the ground first, then the front wheels down.
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