phisherman162
New Member
- Joined
- February 29, 2008
- Messages
- 9
- Reaction score
- 0
- City, State
- Aloha, OR
- Year, Model & Trim Level
- 1991 Explorer 4.0
91 Explorer
4.0
Automatic
139,000
So here is the deal...
I have poor mileage, the vehicle dies at a stoplight at least once a day, bad acceleration (hesitating, cutting out, etc), and, as of today, it backfires when I try to head uphill. It seems to run much better at higher speeds. I have recently replaced air filter, fuel filter, fuel pressure regulator, oil change, alternator, rear brake lines, front rotor assembly, wheel bearings, radiator, thermostat, all hoses, all gaskets on engine, and AC compressor and lines. I am checking the plugs tomorrow, and will post pics. When I plugged it in, I got codes of idle too high or out of range, and code 77 throttle not fully open.
It feels like fuel or air, maybe mixture?
This rig is my primary mover and I need to get it running. Any help would be greatly appreciated.
4.0
Automatic
139,000
So here is the deal...
I have poor mileage, the vehicle dies at a stoplight at least once a day, bad acceleration (hesitating, cutting out, etc), and, as of today, it backfires when I try to head uphill. It seems to run much better at higher speeds. I have recently replaced air filter, fuel filter, fuel pressure regulator, oil change, alternator, rear brake lines, front rotor assembly, wheel bearings, radiator, thermostat, all hoses, all gaskets on engine, and AC compressor and lines. I am checking the plugs tomorrow, and will post pics. When I plugged it in, I got codes of idle too high or out of range, and code 77 throttle not fully open.
It feels like fuel or air, maybe mixture?
This rig is my primary mover and I need to get it running. Any help would be greatly appreciated.