Not Ranked
The top will be hotter than the bottom .....hot coolent enters through the upper hose then flowes through the radiator to the bottom hose where it reenters the engine....your temp changes that show on the guage may just be the coolant "cycling" through the system....tstat opens hot coolent flows into rad. and when the "cooler" coolent from the rad. hits the tstat it closes and waits for the coolent to heat up again so it can "cycle' again....
|