car wont run when its warm

[mys102002]

i own an 88 lx 5.0 . the car runs fine when its been cold ,even when run through out the day once its warm it seems to run ok ,but a bit sluggish, then all of a sudden its like its chokin or starvin for fuel then just shuts off .once you turn the key off & leave it sit a few minutes it will start and run maybe a block or two then quit.any suggestions,you can hear the fuel pump run the whole time also . any help much appreciated

 

[rangerdoc]

Have you done any mods and fuel injected? Check to see if your fuel lines are running against any hot parts where the fuel may be getting too hot and becoming vaporized. If you're still stock, then it shouldn't be that. I'm sure someone else has some better ideas.

 

[mys102002]

i just bought the car and the motor has been built from new crank to bigger cams and injectors but i wonder about the fuel lines because the run next to the exhaust

 

[PurpleStripes]

When it fails, have someone check to see if the ignition is firing while you turn it over. Sounds like a bad ignition module to me. Common on Fords and is usually affected by heat.

 

[mys102002]

just put a brand new ig module on the car today to try to correctthe prob but didnt work, your suggestions are greatly appreciated ,do you think possibly computer

 

[HISSIN50]

When it fails, have someone check to see if the ignition is firing while you turn it over.

Thank you.

One can lose a lot of money tossing parts at a problem rather than diagnosing it and buying the part that is needed.

Follow this advice and post back. Also Jrichker has some info for cars that wont start - you would have to pick and choose which info to follow, but it might help you.
Good luck.