Welcome Visitor! Please take a few seconds and kgladin
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- Joined
- Aug 4, 2018
- Messages
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- Vehicle Year
- 1989
- Make / Model
- Ford
- Transmission
- Manual
First time poster but I have gotten a lot of help from this forum in the past and really appreciate you all. My son recently purchased an 89 Ranger. He drove it 3 hours home and spent the majority of the day driving around. Later that night it started misfiring and left him on the side of the road. Got it back to the house and waited until the morning to look at it. It started fine, took it for a test drive, about 4 minutes later did the same thing to me.
I've replaced both coil packs and the fuel filter. Have pressure at the rail. Ran with and without o2 sensor, same result. One can of fuel treatment to rule out bad gas, same result. Can hear the fuel pump at accessory on, even tried while the gas line was disconnected and got gas before the filter.
Basically cold start runs fine for about 3-5 minutes then it starts misfiring, can sometime recover with throttle but will eventually stall. I can get it to restart with same result but if i let it sit for 30min's to an hour it will start and run fine for another 3-5 minutes.
Any help would be greatly appreciated! Thanks.
I've replaced both coil packs and the fuel filter. Have pressure at the rail. Ran with and without o2 sensor, same result. One can of fuel treatment to rule out bad gas, same result. Can hear the fuel pump at accessory on, even tried while the gas line was disconnected and got gas before the filter.
Basically cold start runs fine for about 3-5 minutes then it starts misfiring, can sometime recover with throttle but will eventually stall. I can get it to restart with same result but if i let it sit for 30min's to an hour it will start and run fine for another 3-5 minutes.
Any help would be greatly appreciated! Thanks.
