i have an 89 ford 150 and it has a 5.0 in it, when i start it up on cooler days it will run but it take FOREVER to warm, when im going in drive or reverse and i release the trottle, it will stall out even if there is very small movement in the pedal. i was wonder what i can do to fix it, it will only happen until it begins to warm and even then when i pull out from a parking lot no matter the temp this happens but only in the begining.