My temp guage stays on the cold mark for about 10mins or so then slowly starts to rise but dont rise very much. The rad fan still kicks on and off like normal.

I replaced thermostat so far and im getting the same problem. Could it be the temp sending unit?

 

 

Thanks alot man

 

Guage test checked out ok, gonna replace the sender here in a bit.

 

Replaced the guage sender and the guage is working and reading correctly now