strange high pitched whine at certain speeds
08-07-2013, 02:53 PM
#1
Senior Member
Thread Starter
strange high pitched whine at certain speeds
So between 35-45 mph, i hear a faint noise, almost like a high pitched whine coming from somewhere. It doesn't change frequency with rpms, or vehicle speed. Same sound the whole time. As soon as I get above 45 or below 35, it instantly cuts out. I have tried recording it, but the camera does not really pick up the sound very well.
Any ideas? I don't think it's the trans since the pitch of the sound never changes with RPM's, and i don't think it's related to the front end components since the vehicle speed doesn't change the pitch either..
I can't feel anything, but it kind of sounds like a high pitched vibration. compare it to the sound of a tuning fork.
Any ideas? I don't think it's the trans since the pitch of the sound never changes with RPM's, and i don't think it's related to the front end components since the vehicle speed doesn't change the pitch either..
I can't feel anything, but it kind of sounds like a high pitched vibration. compare it to the sound of a tuning fork.
08-07-2013, 04:49 PM
#2
So between 35-45 mph, i hear a faint noise, almost like a high pitched whine coming from somewhere. It doesn't change frequency with rpms, or vehicle speed. Same sound the whole time. As soon as I get above 45 or below 35, it instantly cuts out. I have tried recording it, but the camera does not really pick up the sound very well.
Any ideas? I don't think it's the trans since the pitch of the sound never changes with RPM's, and i don't think it's related to the front end components since the vehicle speed doesn't change the pitch either..
I can't feel anything, but it kind of sounds like a high pitched vibration. compare it to the sound of a tuning fork.
Any ideas? I don't think it's the trans since the pitch of the sound never changes with RPM's, and i don't think it's related to the front end components since the vehicle speed doesn't change the pitch either..
I can't feel anything, but it kind of sounds like a high pitched vibration. compare it to the sound of a tuning fork.
08-08-2013, 01:59 AM
#4
Senior Member
Thread Starter
No, it isn't tire noise. The terra grapplers have their own distinct noise.
Muffler is a magnaflow straight through.
I don't think it's anything serious, but i'm ocd and would still like to try and track it down. No way to do that though
Muffler is a magnaflow straight through.
I don't think it's anything serious, but i'm ocd and would still like to try and track it down. No way to do that though
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08-09-2013, 07:54 AM
#8
Rear axle gear whine is prominent on light throttle at highway speeds. Is your oil level correct? Suggest changing rear axle lube with factory recommended grease. If limited slip differential use exactly specified grease or you'll have other issues.
08-09-2013, 05:39 PM
#9
Senior Member
Thread Starter
It isn't the rear axle. the rear axle on my ranger was whining and it was a very different sound than this. That changed pitch with rpm's as well and never cut out, you could hear it at any speed.
also, this isn't at highway speeds.
also, this isn't at highway speeds.
08-16-2013, 11:47 PM
#10
Just wondering if you ever found out or fixed the problem that is making the noise because I to have the same problem on my 03 fx4 and only happens at low speeds and when its hot out side its a high pitch noise and its driving me crazy and if I do a complete stop and go reverse no noise then I go forward again it goes ways then it will come on again let me no what you find out