1990 f150 miss and ping

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12-22-2002, 08:37 PM

allman

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1990 f150 miss and ping

302 motor has an occasional miss and ping.it will happen more often under aload.I already changed the plugs wires,and gas filter with no luck.what could it be?

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12-22-2002, 08:39 PM

PATS2002

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1990 f150 miss and ping

[updated:LAST EDITED ON 22-Dec-02 AT 09:41 PM (EST)]timing or crappy gas.... oxygenated fuel even... try higher octane

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12-22-2002, 09:26 PM

allman

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1990 f150 miss and ping

i have already tried higher octane and fuel injector cleaner with no luck.maybe timing,thanks.if not, what else?

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12-22-2002, 09:42 PM

steve83

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1990 f150 miss and ping

Pull the codes and see if the computer has detected it. Your knock sensor may be dead.
http://www.broncodata.com/tech/codes.htm

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12-22-2002, 11:05 PM

larrysb

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1990 f150 miss and ping

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