glenn123
Member
- Joined
- Dec 6, 2010
- Messages
- 55
- Reaction score
- 0
- Points
- 6
- Vehicle Year
- 1989
- Make / Model
- ford
- Engine Size
- 2.9
- Transmission
- Manual
I just recently did a 4.0l swap in my 89 ranger from the 2.9l.
everything seems to be working okay except when I rev the motor to 3000rpm it stumbles or stutters. like its not getting enough fuel or maybe getting too much. I can get past 3000rpms if a stay on it but its nearly impossible while driving. Im not sure if its a miss fire or problem with mas air flow. I tried another mas sensor I had laying around but still no change. I changed the fuel pump thinking it might be a difference in fuel pressures from 89 to 90 but no change. Also unplugged the mas sensor and tried it but still no change.
I am having problems with my neutral safety switch as it wont crank with the key so I start it by jumping the solenoid on the fender. I read on some threads where this could be an issue but not sure. I really need my truck asap its been almost a month with no truck!
everything seems to be working okay except when I rev the motor to 3000rpm it stumbles or stutters. like its not getting enough fuel or maybe getting too much. I can get past 3000rpms if a stay on it but its nearly impossible while driving. Im not sure if its a miss fire or problem with mas air flow. I tried another mas sensor I had laying around but still no change. I changed the fuel pump thinking it might be a difference in fuel pressures from 89 to 90 but no change. Also unplugged the mas sensor and tried it but still no change.
I am having problems with my neutral safety switch as it wont crank with the key so I start it by jumping the solenoid on the fender. I read on some threads where this could be an issue but not sure. I really need my truck asap its been almost a month with no truck!