would the map sensor stop the truck from starting

gas in the throttle body may just flood it

May just be what it needs to start also!

MAP plugs into the intake manifold behind the throttle body!! You are thinking about the MAF. Who knows what the problem really is anyway might be saying the engine wont turn over!! (not cranking) This engine will start without either of these sensors even on it, may not run right but will start and try to run!! I own one and remember working on the first ones that came out in the late 70's.

your right sorry

No problem at all good suggestion.