92 f150 starting problem

[kukidude]

92 f150 intermittenly fails to start. happens only when warm. once running it runs fine. have replaced ECM. any Ideas? thanx.

[stv840]

you should ck for parrisetic drain and excessive voltage drop in the battery wires and starter soliniod provided the battery is good

[farmerdoc]

I have the same problem. My 87 F150 won't crank once it has been driven and has warmed up. After sitting awhile, I can start it. What is parisitic drain? How do you check for parisitic drain? How do you fix this when found?