sounds like its got a supercharger
03-13-2014, 10:18 PM
#1
Senior Member
Thread Starter
sounds like its got a supercharger
Sadly it doesn't have one but theres a whine under the hood that sure sounds like one. I can hear it in the cab when driving.
Its not the ac compressor because I hear it with the compressor off. Im not really sure where its coming from but I can hear it at any speed. Hard to tell if it changes with speed but doesn't seem to get louder or quieter.
A friend said it sounds like the power steering but the fluid is full and doesn't leak and I don't hear a squeal when turning the steering wheel. Steering is normal and theres nothing wrong with it when turning.
My truck is an '06 4x4 with a 5.4 with 132k. The serpentine belt was replaced at 121k.
Its been making the noise for a few months, if not longer. No drivability issues at all.
What could be the cause?
Its not the ac compressor because I hear it with the compressor off. Im not really sure where its coming from but I can hear it at any speed. Hard to tell if it changes with speed but doesn't seem to get louder or quieter.
A friend said it sounds like the power steering but the fluid is full and doesn't leak and I don't hear a squeal when turning the steering wheel. Steering is normal and theres nothing wrong with it when turning.
My truck is an '06 4x4 with a 5.4 with 132k. The serpentine belt was replaced at 121k.
Its been making the noise for a few months, if not longer. No drivability issues at all.
What could be the cause?
03-13-2014, 10:26 PM
#2
Senior Member
I had something like that and mine ended up being the idler pulley and the tensioner's pulley. I got the parts from a dealer and changed them out In about an hour and it was quiet again.
03-14-2014, 12:50 AM
#6
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Watch the tensioner carefully. If it starts to fail in a certain way it will eat the timing cover. Very common on vehicles that encounter long idle periods.
Could be the ribbed pulley as well. I changed mine out during the blower swap and that ribbed unit was shot although functional.
Could be the ribbed pulley as well. I changed mine out during the blower swap and that ribbed unit was shot although functional.
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03-14-2014, 08:33 AM
#9
Senior Member
Thread Starter
I never let this truck idle long, don't even warm it up in the winter.
Its been since atleast Christmas, maybe longer since I didn't really pay much attention to it before that.
Ill have to check the pulleys when I get a chance and it isn't 10*.
Its been since atleast Christmas, maybe longer since I didn't really pay much attention to it before that.
Ill have to check the pulleys when I get a chance and it isn't 10*.
