coolant temp. sensor
could someone please tell me if a coolant temp sensor ( the one with 2 wires ) would effect the way my 97 ranger 4.0 [auto] runs it is missing /surging.it does this at all speeds it is worse with a/c on. i tried new plugs,wires thermastat/ mass air ,air and fuel filters. i have never had any engine codes. also could this the trans. it doesnot slip and the od light does work fine.