[mustangmatt89]

So I have been driving my 93 f250 lately because a deer totaled my 06 mustang. It wouldn't start when I tried to start it after sitting for 6 months I replaced the batteries and it started for about 20 seconds very roughly and then died and couldn't get it restarted didn't even sound like it wanted to. Before it sat it ran great I had a local shop test the glow plugs and some were weak and some were bad and only one good one so they replaced those and It started up roughly, it ran smooth after that except sometimes when I stop at idle it starts to run rough and sometimes it would start and then cut off but would restart after that, it just did that to me and then it wouldn't restart it just cranks, I thought maybe the solenoid is weak?? But I can hear it clicking and power going to the glow plugs, but that wouldn't explain the rough idling once it was warm, any ideas??

 

[Cjhstang]

fill out some info on your truck in your signature...how many miles?

you might have had your fuel drain back. many of these trucks will develop a minor air leak in the return and the fuel will empty into the tank. since you probably have a mechanical fuel pump you then need to crank the truck till it is full of fuel again.
you can try cranking the truck then open the valve on the fuel filter housing and see if it squirts fuel or just air. it should squirt a little fuel out, if not then thats probably your problem.
Your idle problem could have to do with your injection pump timing being off. has anyone messed with your IP? it may be off a little. you can adjust it by loosening the nuts that hold it on and rotate it slightly and see if it settles the idling issue.

 

[mustangmatt89]

My truck is a 93 f250 regular cab with a 7.3 idi non turbo and an automatic 4 wheel drive. It as 230,000 on it. No one has messed with the injector pump since I have had it and 1 year ago I never had a problem with the motor. and the idle only is a little rough when I first start it up and I would give it a bit more throttle and it would go away and then it would be fine, and won't do it for another 5 or ten minutes and then would do it again but when I give it more throttle would stop and idle normal, but now it won't start at all, do you think the idle and the starting are related?

 

[cdnsarguy]

When was the last fuel filter water draining and/or replacement...... 6 month sitting could have caused IP to gum up... Your symptoms sound like possible air entry in the fuel system or internal IP problem.

I have a TSB for you to read..... I will PM YOU