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Misfire in '05 Ranger


mctavish

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Joined
Jan 24, 2015
Messages
16
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Vehicle Year
2008
Make / Model
Ford
Engine Size
3.0
Transmission
Automatic
My 2008 3L Ranger had a #4 misfire. Replaced coil, plugs, wires and still had it. Injector 4 sounded ok. I took off the upper intake , replaced the 3 gaskets and the #4 injector. Was ok after that.( I did find some oil in the upper intake and also noticed the bolts were not really tight.)
 


d_man1

d_man1

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Jan 15, 2010
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Vehicle Year
2002
Make / Model
Ford
Transmission
Automatic
6herald6 said:
One more thing I forgot to mention earlier. This truck does not like to idle too long. If I'm in very slow traffic or stopped at an intersection for a few minutes the "check engine" light goes from constantly being on to flashing. When that light starts flashing the idle gets very erratic and the engine wants to stall. I thought this was only happening in hot weather at first but happens in cooler weather as well.
Is this happening because it's running on 5 cylinders?
Click to expand...
EXACTLY what was going on with mine. Take it to a mechanic ASAP or pull the heads. you for sure have recessed valve seats. seriously. Um sure over half the 3.slows on this forums have the problem that goes overlooked.
 

6herald6

Member
Joined
Nov 3, 2013
Messages
31
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6
Vehicle Year
2005
Make / Model
ford
Engine Type
3.0 V6
Transmission
Manual
2WD / 4WD
2WD
... so, it turned out to be the worse-case scenario; two new heads were needed.
Now, it looks like there might be a problem with the catalytic converter.
One problem begets another, it seems.
 

sethsbseries

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Joined
Oct 26, 2008
Messages
39
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1
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Location
Georgia
Vehicle Year
2003
Make / Model
FORD
Engine Size
3.0 vulcan
Transmission
Manual
Herald how many miles are on the 05
 
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