LonesomeSTX
New Member
- Joined
- Oct 9, 2008
- Messages
- 656
- Reaction score
- 0
- Points
- 0
- Age
- 46
- Location
- Columbus, GA
- Vehicle Year
- 1988
- Make / Model
- Ford
- Engine Size
- 351FI
- Transmission
- Automatic
87 Ranger with a 2.9
I have tried everything I can think of the track down the idle issue with this truck. It ran like crap when I got it and it runs over 100 times better now. I have replaced the TPS, idle air valve, modulator, plugs, wires, cap, rotor, timed it, replaced vacuum lines, pulled and cleaned the air plenum, deleted the cats, and repaired numerous wiring issues. I sprayed two cans of brake cleaner all around the engine compartment and no vacuum leak was found. I have run a lot of fuel system cleaner through the tank and replaced the fuel filter. However, I have not yet hooked a pressurized fuel system cleaner to the fuel rail yet. I know that really should be done. It idles high sometimes, and when it is not doing that it idles rough. The other issue is it stumbles going uphill. What am I missing? I think it is a fuel issue.
I have tried everything I can think of the track down the idle issue with this truck. It ran like crap when I got it and it runs over 100 times better now. I have replaced the TPS, idle air valve, modulator, plugs, wires, cap, rotor, timed it, replaced vacuum lines, pulled and cleaned the air plenum, deleted the cats, and repaired numerous wiring issues. I sprayed two cans of brake cleaner all around the engine compartment and no vacuum leak was found. I have run a lot of fuel system cleaner through the tank and replaced the fuel filter. However, I have not yet hooked a pressurized fuel system cleaner to the fuel rail yet. I know that really should be done. It idles high sometimes, and when it is not doing that it idles rough. The other issue is it stumbles going uphill. What am I missing? I think it is a fuel issue.