I own a 1993 E150 Econoline Van. It's easy to start, and runs good until it warms up, then it starts missing and stops. I can start it again but it won't run, until its cold again.
Starts fine, runs about 10 miles smoothly, then starts cutting out until the motor dies. I
can put it in park and restart it, but it does the same thing. It seems to run best when its
cold. We replaced the throttle position censor, cleaned the mas censor, replaced
catalytic converter and the engine coil. What am I missing?????