Help my Truck is Whining
02-02-2010, 09:45 AM
#21
Senior Member
This completely answers my post about the same problem. Thanks so much for all the great info. Its good to know that I'm not going crazy as well. And radio feedback is much better than my Alien Screech description of the sound 
. This place is so much better than vwvortex!
... just thought the boat was cool lol.
. This place is so much better than vwvortex!... just thought the boat was cool lol.
12-06-2013, 07:54 AM
#22
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well looks like ill change out the Ault to see if this fixes the issue, i have the same whine only on acceleration and its getting progressively louder as the days go by. 
will let you all know if its goes away
will let you all know if its goes away
12-06-2013, 08:26 AM
#23
Senior Member
12-06-2013, 08:41 AM
#24
Senior Member
I would not replace anything until you are certain that is the issue. Replaing an alternator is an expensive and time consuming job if that turns out not to be it.
Never through parts at your truck and hope to hit the issue. If it is indeed the alternator then a mechanics stethoscope (an inexpensive purchase) will tell you.
I had the same whine and it turned out to be the pulley bearing for the tensioner. A $7 repair
Never through parts at your truck and hope to hit the issue. If it is indeed the alternator then a mechanics stethoscope (an inexpensive purchase) will tell you.
I had the same whine and it turned out to be the pulley bearing for the tensioner. A $7 repair
12-06-2013, 02:22 PM
#26
I'm wondering if it a bearing in the AC compressor. I believe that when I'm using the defrost the AC compressor kicks on and off. What does anyone think of that possibility?
It's warmed up around here in the last day as well and the noise has not happened in the past day of so.
John
It's warmed up around here in the last day as well and the noise has not happened in the past day of so.
John
12-06-2013, 06:06 PM
#27
12-11-2013, 04:13 PM
#28
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well i did a trouble shooting and i had heat AC all turned off would it still make that sound if heat and AC is off. understand how a O-ring for a dipstick can make the whining sound and if it could wouldn't there be an oil leak as well with that possibility ??
12-11-2013, 04:18 PM
#29
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well my other issue is my ford is a 2004 and i have had no issues with her since day one other than preventive maintenance. so with that in mind it could be almost anything in my mind sine she is 110% all original factory parts well my other issue is my ford is a 2004 and i have had no issues with her since day one other than preventive maintenance. so with that in mind it could be almost anything in my mind sine she is 110% all original factory parts
12-11-2013, 04:18 PM
#30
Senior Member
I had the same problem on my 07 f150 and it was the tensioner pulley. Not sure if anyone has said that but I figure a 15 dollar part is a better place to start then replacing alternator or something over 100 dollars