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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Unusual engine noise

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Old Jun 17, 2005 | 09:56 AM
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FordTrucks4Life's Avatar
FordTrucks4Life
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From: Louisville, KY
Lightbulb Unusual engine noise

I just purchased an 88 F150 with a 5.0 while i was home from Iraq. the passenger side header is cracked and there is an unusual hissing of air coming from the top of the motor (mostly from the drivers side). Can any one shed some light on what it may be? I just went back to Iraq and won't be able to tackle the problem till i come home at the end of the year. Just shoot me some suggestions so i can figure out what needs to be done once i leave this godforsaken land.
 
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Old Jun 17, 2005 | 10:40 AM
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FghtinIrshNvrDie's Avatar
FghtinIrshNvrDie
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From: Pleasant Hill, MO
I kind of have a hissing sound coming out of the top of my motor. I can mostly only hear it right after I turn it off. I've got some kind of leak in my fuel pressure regulator o-ring. Maybe that's your problem?

Ryan

P.S. Good luck in that God forsaken land.
 
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