My truck started making a rattling sound. It's coming from the front near the engine fan. I only hear it when it's idling. I've heard other trucks making that same rattling sound before. Anybody give me an idea what it is?
Rattling sound coming from the engine.
Discussion in 'International Forum' started by texasmorrell, Feb 27, 2015.
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2nd Gen ISX on a 09 Prostar 730k miles.
Last edited: Feb 27, 2015
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Does it change at all when the air compressor is pumping?
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^ what they said.
Have you turned motor off and tried to see if the fan is wobbily? Mine was when the fan clutch was shot.
Also does the noise come and go where it could be your air compressor when it cycles? -
keep it simple check the fan clutch first, lots of luck
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What about the idler pulley/tensioner?
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I had a similar noise on a '12 ISX in a W900 two years ago. One of the belt idler tension pulleys had to be replaced (under warranty of course). Could be your same issue.?.?.?
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