i've just put an after market temp sender in my 2wd saff
before it read between the O & R on the gauge and the fans came on around the moddle of the O .
now when driving the gauge reads in the midle of the O and the fans come on around the middle of the N
hope this is of help ???
i know snap on do a digital temp reading gauge that you point at a water hose to find out what temp it is at , if you ask at you're local garage thay might have one that you could use , if you go down in you're car .
that way you tell what temp it is running at ?????.
or
waterpump could be shot at ???
radiator blocked near fan switch ???
faulty fan switch ???