I have a 74 F250 Crew with 360 2 barrel & I had a guy I know who knows something bout old trucks to look at it. He checked the fuse link the fuse was blowed so we replaced it replaced the battery cables cleaned the connections & replaced the solenoid & checked all the fuses in the fuse box they were all fine. An I have a trailer brake on it an it is run to the battery red light stays on all the time. So we tried to start it so we could get it into the building it is sitting in front of so I could start working on it. We did all that an had the tire fix & aired up an put some gas in the tank that is behind the rear seat. So he put some gas in the carb the jumped the solenoid since the ignition switch would not work. So when he was doing that to start it he told me to put my foot to the floor on the gas so I did an it started right up but as soon as I would take my foot off of the gas just a little bit it would die & it woke a few neighbors up no exhaust just the exhaust pipe is bout half way under the cab it is broke or rusted off an there is nothing else there so it is real loud. When we got the solenoid we told Autozone what it was doing an we think it might need the ignition switch replaced an take the fuses out an clean the connectors on it an that might help it. But when I was putting my foot on the gas I saw the brake light come on on the dash an stay on an then when it would die an start back it would not be on anymore. There is no headlights working dome light nothing just the brake light came on sometimes. Anybody have any ideas what might be wrong with it?

 

When you actually got the truck running, did it run smoothly?

 

There is a large number of things that could be wrong. I doubt the ign. switch is bad, I've never seen one anyways. I'd look into neutral safety to get it to crank by key.(I assume it's automatic)

carbs most likely dirty, plugged, and such. could be a vacuum leak too though.

Those solenoids don't normally go bad either. I see lots of people replacing them, and it's just a bad connection the whole time.

I believe that brake light is for when you loose a brake line, or brake cylinder. It somehow detects that there is no more fluid, or it doesn't build pressure, or something. The equivalent to the light in my car for when I am low on brake fluid. I could be wrong though, but I don't think it has anything to do w/ the E-Brake?

 

It sounded fine when running & no its a 4 speed manual trans. I am going to replace the fuel filter & check an see if there might be moisture in the tank maybe put some drygas in it or something like that an see if that helps. It acted like it was not getting any gas. If that does not help it I was thinking it might be the fuel pump.

 

Mechanical fuel pumps usually always work, that's the beauty of them! If you had a fuel pump problem you would notice that it runs fine, then you give it some gas. Once the bowl drains down enough, the fuel pump can't keep up, and it will sputter bad and probably almost stall out.....either that or it wouldn't pump anything at all. I would tear into the carb.

 

we put bout 4 gallons of gas into the factory 20 gal. tank an tried to start in an put some gas an starting fuild in to the 2 barrel carb to get it to run an it still acted like it was not getting gas. The truck has not been stated in bout a year till a couple of days ago when we tried to start it for the first time since I have owned it. The guy I bought it off of said he had not started it in bout a year.