Question about 2005 Ford F-150
I have a 2005 Ford F150 4x4 w/75k miles. Between 1800 and 2000 RPM a high pitched whine comes from the engine compartment. As soon as I increase or decrease the RPM it goes away. Speed does not matter, it is definately RMP.
I had the same problem, weather was cold but only -15 nothing severe. It ended up needing tensioner pulley and for $60 plus labour I was on my way.
Posted on Jan 07, 2009
Same issue on a '05 5.4. Bought a new idler pulley and swapped out the left side, no fix, swapped the right side still no fix, took the belt off and it turns out its the pulley on the tensioner (bearings shot). It makes sense that the issue comes and goes with RPMs, sinced that it what the tensioner is there for. Trying to find out if its the same part as the idler pulleys, will pull the tensioner tomorrow to see if they are the same size to start. Hope that helps!!!
Posted on Jan 29, 2009
First thing to check is your belt tensioner pulley.
I would get someone to help, and hve them hold the truck at the RPM where you hear the noise, and look through the engine to determine where it's coming from. Even a more generalized idea of location can be helpful.
Posted on Dec 07, 2008
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Posted on Jan 02, 2017
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