2003 f250 - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 06-16-2010, 07:35 AM Thread Starter
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2003 f250

Hi, I just looked at a 03 f250 6.0 and when it was warmed up and idling, every now and then I would hear a click under the hood and the exhaust tone would change for a few seconds then it would switch back. Is this normal? What would cause it?
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post #2 of 3 Old 06-16-2010, 07:36 AM
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Sounds like your air-conditioner compressor is cycling !!
And yes....normal.

Trucks, cars, bikes, beer......(mmmm, beer) !!
07 F-350 Harley Davidson
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post #3 of 3 Old 06-16-2010, 07:41 AM
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Could also be the new VXCF9 strategy. That has a new thing that periodically exercises the turbo vanes while idling. Sounds pretty cool.
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