1994 F-150 4.9 E4Od
A few days ago start too run real bad; it felt like a combination of tranny and timming. At the auto parts I hit the gas with the brake on and stall. I try to start it back for about 10 minutes with out luck. On the last try it fell that the engine turn backwards so I went and move the distribuitor and start ;the timming was way out but I made it home. At home set the timming but still was out. un-plug the battery for a minute start it and set the time againg and it was fine.Today it was running fine; came home wash the engine try to start it and did the same; it won't start. I remove the distribuitor cap yes it was wet; I dry it up and still won't start. it's turn like the battery is dead for a second and them turn real strong but out of time. this time I didn't misses with the distribuitor. About 10 minutes later the truck start fine ,run's fine for about 30 minutes before the timming beging to fell out. I run a scan on it and the only code I get is 632 (Transmission Control switch circuit did not change state during KOER self test. Could this be the computer or the MLP sensor? Thanks

 

did you remove the timing "plug" off one of the set of wires off of the distributor that resets the base timing when you change the timing?

 

Like ranger said make sure the SPOUT connector is out prior to checking the timing. How many miles on the truck?

 

Yes I Unplug the spout to set the timming.
it's like this; the truck is running fine and suddenly the timming get out of timt with out doing noting to it and with out the chaing jumping. I was thinking if the ignition module or computer can make this happens.Thanks

 

Do you have high mileage?

 

Sounds like you jumped a timing gear. Now you are running too far advance. When the motor warms up it makes it very difficult to start until it cools.

 

I only have 25,000 on rebuild engine.

I don't think jump timming; last time it did it I didn't misse with the timming and after a while run fine.

I was thinking on a new ignition control module to see it help.

 

Could be your cam gear or distributor gear is stripped causing the issue.

 

i agree with fully loaded, i was thinking cam gear off the tail of your distributor