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#1
10-28-2010, 01:17 AM
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1993 F-150 Rattle
I bought a 1993 F-150 with a 5.8 engine 176,000 miles on it. The engine sounds good at an idle, but when you rev it up slow it picks up a rattle and as the rpm comes on up it goes away. If you crack it wide open it does not rattle at all. I am wondering if this is the timing chain hitting the cover or if it is something else. The oil pressure is seems to be good. The rattle seems a little too loud to be spark knock.
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#2
10-29-2010, 08:57 AM
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Re: 1993 F-150 Rattle
I had another ford guy tell me it could be preignition due to carbon build up. I have the plenum and valve covers off now trying to locate the noise, so i guess i will put it all back and try running some seafoam through it.
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#3
10-29-2010, 07:12 PM
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Re: 1993 F-150 Rattle
With 176k I would recommend keep driving it, if it is a problem, it will present itself.
Crap advice I know, but you will spend a fortune throwing parts at it and if you just drive it, it will either present a problem, or you will just decide to live with it. Any chance you could sound record it with a cell phone or something and post it up?
__________________
10 hours away from John Deere master certified also master certified ASE tech. Exp. in both. Went to school for cars, wound up staying with Deere dealer for a while, so schooling there too. Also couple years exp in GM and some GM training Gave up wrenching for "Greener Pastures" Current job: RN 2010 Silverado Z71 5.3L 65xxx Wife's 2007 Suburban 1500 LTZ 5.3L 102xxx
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