High pitched whining eng/trans
Thread Starter
|
Member
Joined: Mar 2002
Posts: 55
Likes: 0
From: Texas
High pitched whining eng/trans
I know I posted this in the engines forume but it may pertain to the trans, just looking for advice.
I have a high pitched whinning noise coming from somewhere either under the hood or in the trans. I can hear it in side the truck when I rev. it up as it idles back down is when I here it the most. I reved it up from under the hood, and couldnt hear it there, making me think trans or maybe radio noise interferance. Has anyone had this problem.
Its on a 02 5.4
I think tomorrow im going to pull the fan off so that is not blowing noise in my ear while reving it up, just thought I would see if someone else has noticed this aswell.
It sounds just like a supercharger whinning down after you rev a motor up. or better comparison like when you shut a shop vac. or big vac. at a car wash off, that kind of delayed wind down sound.
I have a high pitched whinning noise coming from somewhere either under the hood or in the trans. I can hear it in side the truck when I rev. it up as it idles back down is when I here it the most. I reved it up from under the hood, and couldnt hear it there, making me think trans or maybe radio noise interferance. Has anyone had this problem.
Its on a 02 5.4
I think tomorrow im going to pull the fan off so that is not blowing noise in my ear while reving it up, just thought I would see if someone else has noticed this aswell.
It sounds just like a supercharger whinning down after you rev a motor up. or better comparison like when you shut a shop vac. or big vac. at a car wash off, that kind of delayed wind down sound.
Senior Member
Joined: Jan 2001
Posts: 975
Likes: 0
From: W. Van., BC, Canada
This happens with the radio on or off? If on only then it's alternator whine. Try cleaning up your battery connections. Try an antenna isolator. If aftermarket stereo, try a ground loop isolator on the RCA outputs.
Tranny have fluid in it?
Tranny have fluid in it?
Junior Member
Joined: Dec 2003
Posts: 5
Likes: 0
whine
i have the same noise and it is not connected to the ratio. mine is
accompanied by a failure of the torque converter lockup. in other words when i downshift out of overdrive by pressing t he button it does not "compression brake" but seems to freewheel. car runs through gears just fine but whines like a supercharger. could itbe some kind of cavitation in the trans caused by a plugged filter? i have had no response to my posted question a while ago.
accompanied by a failure of the torque converter lockup. in other words when i downshift out of overdrive by pressing t he button it does not "compression brake" but seems to freewheel. car runs through gears just fine but whines like a supercharger. could itbe some kind of cavitation in the trans caused by a plugged filter? i have had no response to my posted question a while ago.
Senior Member
Joined: Mar 2002
Posts: 284
Likes: 0
From: Austin
Mine does it too..
My 2002 FX4 5.4 does it too, I have asked Ford about it and they said that it is "probably normal..." I don't think so. It is a high pitched whine when revving back down. Mine doesn't seem to do it in Park, which may explain why you can't hear it with the hood popped? But I also have an exhaust which drowns it out when the truck is sitting still, so you can't hear it unless you are moving. I hear it most in 4th or overdrive on the highway slowing from around 65+, but also at lower speeds at higher RPMs.
Definitely not the radio... I have turned it off.
I just had my tranny fluid changed at 38k miles. It has been making the noise since around 20k miles.
Definitely not the radio... I have turned it off.
I just had my tranny fluid changed at 38k miles. It has been making the noise since around 20k miles.
