03 ram 1500 4x4 manual transmission 4.7, cold start 1500 rpm, 30 seconds driving up to 2000 rpm. Changed IAC, TPS, Power steering pressure switch, power steering pump, and checked for vacuum leaks (dealer said-vent side fuel filler neck) but don't see fuel leaking as I fill gas to overflowing. Note: upon removing airbox from throttle body. Small vacuum hose in back has moisture probably due to hot air cooling off. None in throttle body. Need fixed asap. Four people have tried to diagnose.