If you think its a fuel pressure bleeding off, next time it doesn't want to hot start, cycle the ignition switch from off to run 3-4 times, remaining each time at "on", long enough for the fuel pump to run for a couple of seconds & time out, Then go to start to crank the engine & see if it makes a difference in how it starts.
Are you certain the TPS resistance is within range when its hot & the throttle is closed???
99 Ranger XLT 4dr 4x2 4.0L 5spd Auto 3.55L/S Payload Pkg2 Tow Pkg
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