high pitched wiiiiinnnnnnnnnnneeeeeeeee - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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  #1  
Old 05-20-2008
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high pitched wiiiiinnnnnnnnnnneeeeeeeee

buggin the crap out of me, cant tell what it is. sometimes when im pushing the pedal slightly to gain a little speed i hear this high pitched wine coming frome under the hood, the only problem is when i want someone else to hear it; it dont do it. weird explanation i know but its buggin the crap out of me.
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  #2  
Old 05-21-2008
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hmmm sounds like somebody did the supercharger mod..? haha jk

automatic or manual?
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  #3  
Old 05-21-2008
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might be a air intake leak. Mine does the same thing lol
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  #4  
Old 05-21-2008
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auto. it doesnt do it all the time only on the days that it wants to.
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  #5  
Old 05-21-2008
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do you have an aftermarket intake?
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  #6  
Old 05-21-2008
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Omg I have been trying to track it down forever. I think it is my exhaust where it bolts between the cab and the bed. Mine is only under slight acceleration too.

5sp with intake and exhaust
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  #7  
Old 05-21-2008
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aftermarket intakes make a high pitch noise along with a sucking sound.

deal with it or put your stock intake back on.
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  #8  
Old 05-21-2008
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Quote:
Originally Posted by 5speedin2.3 View Post
aftermarket intakes make a high pitch noise along with a sucking sound.

deal with it or put your stock intake back on.
To make sure everyone on is on the same page:

Aftermarket intakes shouldn't make a high pitched bearing type sound. They just allow more air to be consumed. (Suction noise is different from the noise we are describing in here)

Anyways...Does anybody else think it may be related to the throttle cable.
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  #9  
Old 05-21-2008
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i have that same problem and i dont have and aftermarket intake just a K&N drop in and the air box mod
it is so annoying but it only does it at like 2600-2900 rpms
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  #10  
Old 05-21-2008
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Belt slip, bad pulley....
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  #11  
Old 05-22-2008
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Quote:
Originally Posted by Fredness View Post
Belt slip, bad pulley....
You are probably right. Any idea on how to trace down the bad pulley? Is it best to change the belt and then see if it still does it?
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  #12  
Old 05-24-2008
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mine isnt a belt slip or bad pully, sounds like air getting sucked in at a high pitch. havnt heard it for a couple days now though. and no aftermarket intake
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  #13  
Old 06-12-2008
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Fan clutch not disengaging?
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  #14  
Old 06-27-2008
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mine does the same thing, its a stick, idk if that makes a difference but its got a whine to it, even when idling and whne i hit the gas it gets worse, it runs fine but idk what it is
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  #15  
Old 06-29-2008
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I had the same problem on my 2002 ford ranger. It was the bearing in the water pump.
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  #16  
Old 06-29-2008
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I hear that on my truck. When it was stock, it was pretty quiet. After the air box mod, it's alot louder. Its just resonance from the throttle plate being partially open acting like a reed in a whistle. It's normal. Either put sound deadening baffles in the intake, or enjoy it like I do.
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  #17  
Old 06-30-2008
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yea i have the same thing with my 2000 ranger but its kinda like it makes sound i have a supercharged
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  #18  
Old 06-30-2008
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The noise is coming from the IAC valve. You can try cleaning it (it's probably gummed up from the K&N air filter), but more than likely it will have to be replaced.
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  #19  
Old 06-30-2008
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Quote:
Originally Posted by Takeda View Post
(it's probably gummed up from the K&N air filter)
i have had zero problems over the last 4 years with my K&N panel filter.

bob we all know how you think and just like you, its getting old.
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  #20  
Old 06-30-2008
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Quote:
Originally Posted by 04 EDGE View Post
i have had zero problems over the last 4 years with my K&N panel filter.

bob we all know how you think and just like you, its getting old.
Gee, I guess you overlooked this thread!!!


https://www.ranger-forums.com/forum2...ghlight=gummed
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  #21  
Old 06-30-2008
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bob, can you prove the oil on the filter did this to his IAC?

i have seen TB's and IAC's gum up with regular filters so yeah. unless you can prove it was the filter then be quiet.

if you like i can take pics of my TB and IAC (my camera is not as good as yours) and let you see what they look like after 50K with an oiled filter.

and in case you forgot, the factory ford filter came slightly oiled.
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  #22  
Old 07-01-2008
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Quote:
Originally Posted by 04 EDGE View Post
bob, can you prove the oil on the filter did this to his IAC?

i have seen TB's and IAC's gum up with regular filters so yeah. unless you can prove it was the filter then be quiet.

if you like i can take pics of my TB and IAC (my camera is not as good as yours) and let you see what they look like after 50K with an oiled filter.

and in case you forgot, the factory ford filter came slightly oiled.
I believe you have previously posted that you clean your MAF sensor regularly!

All you have to do is hold the K&N up to a light source, and you will see why it passes so much dirt, and oil!!! Now hold a OEM paper filter up to a light source. I think you will even be able to see the difference Mark!!

Do a search on high Si with a UOA due to using a K&N air filter!!

Why do you think K&N puts this in their warranty:

"K&N will not be responsible for any other expenses incurred by the customer under the terms of this warranty, nor shall it be responsible for any damages either consequential, special, contingent, or otherwise; or expenses or injury arising directly or indirectly from the use of the K&N Air Filter."


You won't find that with OEM paper filter manufacturers!!

Mark, try and comprehend this: K&N air filters were developed for off road races like Baja, because the OEM type paper filters would clog in no time. The K&N's
would not clog, but the same amount of dust & dirt was flowing........guess where the dust & dirt went? K&N knows how much dirt their filters pass, or they wouldn't
put "not responsible for damage" in their warranty statement, or they wouldn't sell this "Precharger filter" for use with their filters in "Very Dusty Conditions"

http://www.knfilters.com/wraps.htm

But, I can understand why you would fall for K&N's BS!!!

Last edited by Takeda; 07-01-2008 at 05:51 AM.
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  #23  
Old 07-01-2008
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Ok, seriously dudes, This is NOT a thread about K&N vs. Paper! Take it somewhere else! We have all heard your opinions on this, and we really don't care. Get your own thread and stop hyjacking this one!

Thanks, rant over.
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  #24  
Old 07-02-2008
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lol.
This thread delivers.
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