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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

Small misfire problem

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Old Dec 6, 2007 | 05:31 PM
  #1  
rmann54's Avatar
rmann54
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Cool Small misfire problem

Ok i went to get my Bronco smogged and it failed, it seems to have a small misfire and a slight surging problem.

1993, 5.8 auto, 190k miles.
New fuel pump, filter, pressure regulator. New O2 sensor converters and muffler, new water sensor, new wires cap rotor and plugs. EGR valve and the EGR sensor

I think the surging is the TPS? i have no clue on the misfire tho, it runs good and does not seem to be burning oil, and i am lost on what could be wrong, if i dont get it soon i am going to have to pay a mechanic to look at it, and i have a problem with other people touching my truck so id rather not do that...

any help at all would be great guys
 
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Old Dec 6, 2007 | 05:50 PM
  #2  
TheRoadVirus's Avatar
TheRoadVirus
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Joined: Sep 2005
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From: Orangeville, Ontario
Make sure your 7 and 8 plug wires are separated for as long as possible as this problem is prone to causing misfires.
 
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