get a valve for an 85, they are different spec. turn the car on, do not start it. go to the valve and grab it-does it vibrate? if yes, clean it and cross your fingers. if no, pull the connector and test for power and ground with a meter. 12v with key on, engine off. no voltage, pull the overvoltage relay and look at the date. if it's older than 8 years, replace it with the latest version available. good luck, chuck.