how concerned should i be? - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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Old 06-24-2010
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how concerned should i be?

I have a unique noise coming from what appears my transmission. The noise is only present after the truck has been driven/warmed up and when its idling. The noise is like a humming noise almost like a belt on a pulley (hard to describe) that follows the rpms of the engine but is not overly loud but clearly noticable. So for example i pull in my drive way and either have the clutch in; in first gear or have it in neutral with the clutch out that's when the noise is present.

I searched here and on other ranger sites and have not found anything related to my issue. I have thought about flushing out the fluids and using synthetic atf but I would like to get your guy's input before hand. My truck is a manual transmission 4x4. Thanks in advance!
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Old 06-24-2010
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Well I'm not really sure exactly what it could be but. I can tell you what it should not be! If the trans is making the same noise after warm up with the clutch pedal depressed and released it is not the throw out bearing. Possibly something internal in the trans
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Old 06-24-2010
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Originally Posted by ranger4.0 View Post
Well I'm not really sure exactly what it could be but. I can tell you what it should not be! If the trans is making the same noise after warm up with the clutch pedal depressed and released it is not the throw out bearing. Possibly something internal in the trans
with the clutch depressed, the T/O bearing is running, so if it makes the noise with the pedal depressed it IS the T/O bearing. if it only makes it with the pedal released, its the pilot bearing or a bearing in the tranny.
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Old 06-24-2010
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Depressed or released the noise is the same I think it has nothing to do with the clutch assembly
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Old 06-24-2010
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sounds like the input shaft bearing is going to the s****r
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Old 06-24-2010
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Originally Posted by cheese_man View Post
sounds like the input shaft bearing is going to the s****r
but if the clutch is depressed then the input shaft isnt turning, and he is still hearing the noise...so pilot bearing maybe?
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Old 06-25-2010
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Originally Posted by pcollins View Post
but if the clutch is depressed then the input shaft isnt turning, and he is still hearing the noise...so pilot bearing maybe?
It is definetly not the throwout bearing if it is the same noise with clutch in or out. Possibly pilot bearing... Doubtful though. Probably not a clutch issue
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Old 06-25-2010
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Are you sure the noise is from the tranny?
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Old 06-25-2010
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Are you sure the noise is from the tranny?
That is an excellent question
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Old 06-25-2010
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Originally Posted by rolsmojave3 View Post
Are you sure the noise is from the tranny?
Fairly certain, I went to an exhaust shop to see where exactly my exhaust leak is coming from and he was telling me i have a weird noise coming from the tranny. I was wanting to take a video clip of the sound but unfortunately the exhaust leak (exhaust manifold gasket) is too noisy to hear the noise clearly.

I've had a throwout bearing go on me once before so I knew right away it wasnt that. But its similar becuase the truck has to be warm in order for the noise to appear. The clutch, slave cylinder, throwout bearing etc were replaced about a year and a half to two years ago. Question is, did they replace the pilot bearing in the process.....oi vay!

The transmission works great its just the noise that worries me. I'd hate for it to be a rebuild/replace.
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Old 06-25-2010
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IF they replaced or machined the flywheel I'm pretty sure the bearing needs to be removed to mount on the machine. Either way the proper way to do a clutch job is ALWAYS replace the pilot bearing
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Old 07-18-2010
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Alright, since I have fixed my exhaust leak i have realized the tranny is only making the noise when i do not push the clutch pedal. once depressed the noise goes away. just wanted to post this so this thread doesnt mislead anyone.
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