does it make any difference if you run the heater,

rad and overflow levels are good?

 

Yeah with the heat on from the start I can control it but once it hits the H it's over.

The over flow levels seem fine

 

You really don't need a fan on the highway. Unless its stop and go then u need it

 

it could still very well be a symptom though and I'm only givin ideas

 

Try flushing the rad/cooling system out first, try to get out as much of the gummy stuff as you can, or just replace it... stock radiators are not too expensive... or get a bigger one... wouldnt hurt.

give her some fresh coolant and you should be good to go

 

dont forget that the gauge could just be bad......

 

How many rows should the radiator be?
who makes the bigger one tha fits?
How will I know it fits