Ford: 91 Ford F150 300 6cyl, ford f150, warm weather

Question
Truck has trouble starting in warm weather and after the engine warms up, it bogs down and will die when stopped with engine at idle. It runs better in cold weather but, will have some of the same problems just not as severe when the engine is warm. Please help, Thanks.

Answer
The first thing to check is the idle air controller... (One of the easy ways to check this is to let your vehicle idle and turn on the air conditioning... the engine should idle up...) if it does not than try trplacing the idle controller.... Let me know what you come up with... thanks!