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2.9 miss...


hillvalleybronc

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Joined
Jan 4, 2010
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13
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Vehicle Year
1989
Make / Model
ford
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Manual
i have an 89 bronco 2.9...ran fine then developed a miss..installed new plugs, wires, cap, rotor, fuel filter..new o2 sensor..switched out map sensor off a working 2.9.. cannot figure this one out..any help.. cats are fine..could use any help..thanks
 


kbold

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Sep 25, 2011
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1987, 1983, 199
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ford
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2.9,2.3,4.0
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Manual
is it running rich/lean? getting hot? black smoke out the exhaust? check for vacuum leaks also..
 

hillvalleybronc

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Vehicle Year
1989
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ford
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Manual
plugs look fine...not rich/lean..checked for vac leaks...nothing..only does it after bout 5 mins of run time..
 

volrath

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Feb 15, 2008
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Location
menomonie, WI
Vehicle Year
1990
Make / Model
FORD
Engine Size
2.9L
Transmission
Manual
could be your TFI module
that will make the run bad
 

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