88 XLT Ranger
Member
- Joined
- Jul 23, 2010
- Messages
- 357
- Reaction score
- 0
- Points
- 16
- Age
- 61
- Location
- Pollock Pines Ca
- Vehicle Year
- 1988
- Make / Model
- ford
- Engine Size
- 2.9L
- Transmission
- Automatic
1988 2.9L Misfiring/Popping issue
Hey guy's
I am at a loss here on this 2.9L my issue is it misfires like its running on 5 cylinders. At start up cold it pops/misfires a few times than calms down idel's at 800rpm's. As soon as I give some throttle on the road it starts misfiring I can feel it through the throttle as it feels its pushing the peddle back. I changed the Ignition module,coil,plug wires,spark plugs,high valume fuel pump, fuel filter, checked the fuel pressure it good, it acted like it was going lean I changed the MAP sensor to a Napa one now it seams to do it a lot more than before
The one thing I haven't checked or changed is the Dist cap and rotor. With my old Ford MAP it would run ok for a few miles than start misfireing now its all the time with the new one. Any help is very much appreciated on this issue
Hey guy's
I am at a loss here on this 2.9L my issue is it misfires like its running on 5 cylinders. At start up cold it pops/misfires a few times than calms down idel's at 800rpm's. As soon as I give some throttle on the road it starts misfiring I can feel it through the throttle as it feels its pushing the peddle back. I changed the Ignition module,coil,plug wires,spark plugs,high valume fuel pump, fuel filter, checked the fuel pressure it good, it acted like it was going lean I changed the MAP sensor to a Napa one now it seams to do it a lot more than before
The one thing I haven't checked or changed is the Dist cap and rotor. With my old Ford MAP it would run ok for a few miles than start misfireing now its all the time with the new one. Any help is very much appreciated on this issue
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