I have a 91 f150 it starts right up when it's cold but when you park it and try to start it again it doesn't want to start I have to wait 5-10 mins before it will start
Does not turn over or turns over just don't start? If turns over I would suspect pcv or egr stuck open (if so equipped). As it sits they close and then you can start it.
It turns over but doesn't start