- Joined
- Apr 26, 2010
- Messages
- 12
- Points
- 3,101
- City
- Fort Worth
- State - Country
- TX - USA
- Other
- Mach E
- Vehicle Year
- 1987
- Vehicle
- Ford Ranger
- Drive
- 4WD
- Engine
- 2.9 V6
- Transmission
- Automatic
Hello.
4 years ago I parked my 87 Ranger. One day while driving to work it start feeling strange driving down the highway. When I got off the high way it stumbled at a stop and almost stalled taking off.
4 years later I replaced the 02 sensor and that seemed to fix that issue. I noticed that while idling, it's shaking a little and you can hear a slight miss in the tone of the engine.
Replaced spark plugs. Notice some were a little fouled from a rich mixture. No difference made. I then replace the air temp sensor on the intake plenum and cleaned the throttle body at the same time. It was pretty fouled up and that seemed to help some but still rough and laggy.
The engine smooths out when you give it gas but it's just lagging more then normal for the 2.9l. no codes on KOER but I get TPS code on KOEO.
Not certain that is the cause of my woes though. Its it not smoking out the exhaust, doesn't smell rich, no coolant in oil or vise versa.
Next on my list is to replace the injectors l, but don't wanna keep throwing parts at it that may not fix it.
Also checked for vacuum leaks, fuel in the regulator vacuum line, cap, rotor and wires don't have many miles on them.
Also to note: old gas was drained from the tank and fresh gas was put in after the sit. Its been through 4 tanks with some seafoam.
Edit: Also to add sometimes, not all the time, if I gun it. It will suddenly loose power at the top end of the power band. You can feel the truck stall and see the rpm drop and pick back up.
4 years ago I parked my 87 Ranger. One day while driving to work it start feeling strange driving down the highway. When I got off the high way it stumbled at a stop and almost stalled taking off.
4 years later I replaced the 02 sensor and that seemed to fix that issue. I noticed that while idling, it's shaking a little and you can hear a slight miss in the tone of the engine.
Replaced spark plugs. Notice some were a little fouled from a rich mixture. No difference made. I then replace the air temp sensor on the intake plenum and cleaned the throttle body at the same time. It was pretty fouled up and that seemed to help some but still rough and laggy.
The engine smooths out when you give it gas but it's just lagging more then normal for the 2.9l. no codes on KOER but I get TPS code on KOEO.
Not certain that is the cause of my woes though. Its it not smoking out the exhaust, doesn't smell rich, no coolant in oil or vise versa.
Next on my list is to replace the injectors l, but don't wanna keep throwing parts at it that may not fix it.
Also checked for vacuum leaks, fuel in the regulator vacuum line, cap, rotor and wires don't have many miles on them.
Also to note: old gas was drained from the tank and fresh gas was put in after the sit. Its been through 4 tanks with some seafoam.
Edit: Also to add sometimes, not all the time, if I gun it. It will suddenly loose power at the top end of the power band. You can feel the truck stall and see the rpm drop and pick back up.
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