I got a new temp sensor on 2/19/10 and have driven the car less than 50 miles.My temp sensor goes up really slow and sticks for about 5-10 min then comes down.
Is this normal for the new sensor or should i change the thermostat? If so which one should i get?

 

No, that is not normal for a new temp sensor; most likely your thermostat was/is bad; replace it asap.

 

To gdog:
what kind (brand) of temp sensor should I get?

 

what temp should i get aslo i live un texas where 102-105 degree temp is expected

 

Not sure if this really helps my daughters 240 started out day one with temp guage moving all over the place . 6 years later same thing. just picked up a 240 wagon same or nearly same issue in this case its work today not tommorrow.