Larry the noise you hear coming from the ETA is normal. The sound coming from the ETA is produce by the unit as it begin to set the throttle plate into the proper position before your engine starts. As you turn your ignition switch to 2 position, the ETA utilizes the info from the engine tempeture sensor to set throttle plate. You can try and adjust the throttle plate by hand but it will only go back to it proper factory preset position. The throttle plate should not close all the way doing start. Hope that helped...