Atanyspeed
Active Member
I?m having any issue with my Stewart Warner senders units. From the day I started calibrating the units they have never giving me a consistent reading. One tank will only show a fuel level when it reaches 15 gallons. So I decided to pull the sender today and found the unit was very stiff as it moved through it?s range. I put in another unit and during calibration it stopped registering after 4 gallons. I added 10 gallons more, no change. I pulled that unit and put the float into avgas to see if the arm on the sender moved and it didnt. Has anyone had problems with these senders binding up. All my electrical connections have checked out ok.