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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

Missing after warmup

Old Mar 12, 2010 | 10:34 AM
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Missing after warmup

Hi guys,

This seems to be a fairly common problem. I have had f-150 or old f100 all my life, so this 1987 is like a new car to me, didnt have to even put a radio in it. However, its a fuelie and it ran well for a while, but now misses on only #6 after warmup. (300 straight six). I swapped injectors, there is spark coming out of distributor, compression seems okay, iac seems to be operating fine, plug looks normal, swapped wires and plugs around. Is there a way for it to drop the signal to just one injector after warmup?

thanks in advance

bill
 
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