I bought a 1991 F250 Custom with a rebuilt acdelco 302 in it.

A couple of obvious problems I am having with it are:

An injector is leaking where it screws into the motor. The second one from the front under the air plenum.

The shifter vibrates very badly at 40 to 50 mph in 4th gear (this truck is a manual)

It starts and then shuts off when started from cold, but runs good after it warms up.

I have replaced the IAC and TPS. If I hit the accelerator when the truck is in neutral after it is warm it idles incredibly high until I re start the truck, then it runs normally again. I haven't found a vacuum leak using starter fluid with the truck running.

Thanks for any suggestions and thanks for having me on the forum.

 

Sounds like the got a vacuum leak somewhere, and some of your problem could be that leaking injector. Also you truck should have a coolant temp sensor and air temp sensor. That are like $15 and tell the computer how much fuel it needed based on how cold it is out. So If one or both are bad that could be you problem with your cold start.

 

The injectors only press in by hand and have O-rings so thatd be a quick cheap fix. The TPS also has to be adjusted to the correct voltage or it wont run right