eightynine4x4
Active Member
- Joined
- Oct 15, 2020
- Messages
- 673
- Reaction score
- 178
- Points
- 43
- Location
- New York
- Vehicle Year
- 1989
- Make / Model
- Ford Ranger
- Engine Type
- 2.9 V6
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
- Total Lift
- 2.5" Suspension
- Tire Size
- 31 x 10.5 x 15
Hey all,
89 2.9 auto
So like 50% of the startups, I get a mis and the truck dances until I throttle it up a couple / few times. Then the mis goes away once it’s forced past whatever issue it’s having.
I’ve replaced pretty much all the ignition electricals, done the timing, replaced the fuel regulators and filter, done an in line fuel injector clean out with a reputable system for this. This is of course over a span of time and the issue has not disappeared.
The mis never happens after the truck is running on all cylinders.
Something is stubborn somewhere. I’m guessing it’s fuel related, since gassing it gets it past the issue. Or at least fuel component related.
For what it’s worth, sometimes this misfire happens again when starting up warm. Go to the store with a perfect drive, start it up 5 minutes later and it’s fully misfiring.
I just got word that injectors can also be burned out or faulty, at the “coils”?.. not just dirty or clogged with fuel gunk. Is that true? If so, I’m considering replacing all the injectors. Isn’t the cheapest idea but maybe it’s worth the risk?
89 2.9 auto
So like 50% of the startups, I get a mis and the truck dances until I throttle it up a couple / few times. Then the mis goes away once it’s forced past whatever issue it’s having.
I’ve replaced pretty much all the ignition electricals, done the timing, replaced the fuel regulators and filter, done an in line fuel injector clean out with a reputable system for this. This is of course over a span of time and the issue has not disappeared.
The mis never happens after the truck is running on all cylinders.
Something is stubborn somewhere. I’m guessing it’s fuel related, since gassing it gets it past the issue. Or at least fuel component related.
For what it’s worth, sometimes this misfire happens again when starting up warm. Go to the store with a perfect drive, start it up 5 minutes later and it’s fully misfiring.
I just got word that injectors can also be burned out or faulty, at the “coils”?.. not just dirty or clogged with fuel gunk. Is that true? If so, I’m considering replacing all the injectors. Isn’t the cheapest idea but maybe it’s worth the risk?