I checked all fuses in both areas they all good, all turn signals work

traffic. Turn it off for a min or two and it comes back on. Had it checked can't find a problem

To slip out of gear from 2nd, after stopped and parked and key removed from ignition?

On it will not start. Turns over good, had new wires and plugs , sit for 6 months Prior.

when going on 45 miles per hour drive and third gear works but from 0 it dose not work

sometimes while under the hood I hear a hisss sound after crankin it over sound like its at right hand side of throttel body

its either empty or full never shows the correct amount