Whining at idle? hopfully not signs of a failing HPOP? - Ford Powerstroke Diesel Forum
 
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post #1 of 1 Old 08-03-2011, 07:28 AM Thread Starter
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Unhappy Whining at idle? hopfully not signs of a failing HPOP?

late 99 f350, 6spd. 264,000 on it. Seems like it runs good. When I turn the key to start fuel pump seems loud but not terrible. When the truck is idling I can hear a loud whining from somewhere, It seems to fluctuate slightly and Im wondering if that is just the fuel pump working too hard or a bigger problem like HPOP. After I shut the truck off and restart it when it is still hot I still hear the fuel pump but there is a high pitched whining that comes on at the same time? And only when its hot. Dont really know what is causing that? Hopfully some of you powerstroke whisperers can help me out.

2003 Ford F250 6.0 powerstroke 4x4.
ZF6 manual trans, ext cab short bed
deleted, 4 inch exhaust, gauges, traction bars
16x10 Weld wheels wrapped in 33s


Early 1999 Ford F250 7.3 Powerstroke 4x4
Crew cab short bed
straight pipe, intake
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