My '96 F250 recently just stopped running. I parked it after work and it wouldn't start the next morning. The problem was fixed by replacing the distributor.

Now, the engine starts and idles fine but is extremely slow to increase in RPM when the throttle is opened(meaning extremely slow throttle response), and when driving it has absolutely no power.

I have fuel pressure at the schrader valve. OBD1 test produces no codes other than a 512, and yes the battery was disconnected.

I'm not certain exactly where the timing is set, however the new distributor is in the same location as the old, and idle speed is the same. Advancing or retiring the timing does not help the problem.

I don't know which direction to go with this and need some help.

Many thanks in advance!!

 

Did you put the SPOUT jumper back in after you set the timing?

Do you not have a timing light? If not you can get it close with a vacuum gauge, do you have one of those? You can rent, for a fully-refundable deposit, a lot of tools from AutoZone and I think Advance too. Call and see if they'll rent you a timing light.

 

I have all the necessary tools, just haven't used them yet. My gut says this lack of power is component related rather than timing, but I've been wrong before. I'm just looking for another angle to approach this problem.

 

Dixie is suggesting the timing is locked because the TFI is not getting a signal back from the computer.

 

If the timing is off, (and most likely is, if you haven't set it since replacing the distributor) you can approach it from as many angles as you want, but the first angle should be "check the darn timing!!!"

 

LOL!!! So I guess it's official, I need to get off my fat rear axle and break out the vacuum gauge and timing light...

Thanks for nudging me in the right direction!!