was out in car tonight was getting cold so put heater on to clear window after a few minutes the heater went to cold i left it on and noticed the temp gauge went down to zero so i turned heater off and temp gauge went up slightly turned heater back on and it done same so i turned off heater and car started car up again and temp guage was fine until i turned heater back on and same problem any ideas what it could be please
thanx for looking
thanx for looking
