Ok fellows back in the shop, its not 29 degrees anymore. Checked the sender on an ohms meter this what I got:
1. I tested the sender 1.2 to 33 ohms manual hand sweep of the float
2. I hooked every thing back up and
removed the sender wire reads full, sender wire grounded reads empty.
3. Gauge sender post to gauge ignition post 33 ohms.
4. sender post to cluster housing 25 ohm.
5. ignition post to cluster housing 60 ohms.
6. float not coming in contact with the wall of the tank
7. still having same problem gauge reading to low on a full tank.
thanks much for your help.
Last edited by kahoys; 03/01/2015 12:04 AM.
