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- Joined
- Dec 8, 2009
- Messages
- 172
- Reaction score
- 1
- Points
- 0
- Location
- Central,IL
- Vehicle Year
- 1989
- Make / Model
- Ford
- Engine Size
- 2.9L
- Transmission
- Automatic
I just swaped the bad motor in the 1990 with one that supposedly runs and came with the truck but can't get it running right.
While it was on the stand I put in new plugs, a cap/rotor, I cleaned the TFI and regreased it, put a new rear main, and valve covers.
You have to give it gas to start and when it does it has a miss to it and there is fuel/black smoke coming out the tailpipe but it seems to run smooth'ish if you romp on it.
Things I have tried are sea foam in the fuel tank and in the vacuum line, I checked the fuel pressure and have 30-32 at idle and jumps to 40 when vaccum line is unhooked from regulator, I put the wires off the old motor that looked newer, cleaned the throttle body, and hooked up the O2 sensor that I forgot about.
Does anyone have a clue what could be wrong with this thing?
It doesn't knock, the lifters are quiet, and the injectors tick just slightly.
Sorry for the long post and any help would be appreciated.
Thanks: Steve
While it was on the stand I put in new plugs, a cap/rotor, I cleaned the TFI and regreased it, put a new rear main, and valve covers.
You have to give it gas to start and when it does it has a miss to it and there is fuel/black smoke coming out the tailpipe but it seems to run smooth'ish if you romp on it.
Things I have tried are sea foam in the fuel tank and in the vacuum line, I checked the fuel pressure and have 30-32 at idle and jumps to 40 when vaccum line is unhooked from regulator, I put the wires off the old motor that looked newer, cleaned the throttle body, and hooked up the O2 sensor that I forgot about.
Does anyone have a clue what could be wrong with this thing?
It doesn't knock, the lifters are quiet, and the injectors tick just slightly.
Sorry for the long post and any help would be appreciated.
Thanks: Steve
