I have a 2007 Jeep Commander with the 3.7 v6. I have had issues where when I am driving and accelerating the car will accelerate and shift like normal at first, but sometimes the throttle just cuts out so the car won't go above 30MPH. When I push the gas pedal when this happens, the engine won't even rev. It stays steady at about 30 MPH and RPM's stay at about 2500. It only does this intermittently though, and when I stop and turn the car off and start it again, it starts working normally. Any ideas on what could be causing the intermittent issue?