Hi there i have a 69 corvette and replaced the temp sender unit yesterday as i removed the sender water came out of the block. i refilled the rad and now when i start the car from cold the temp gauge rises to the red and then back down just above 100, i have a new thermostat and just replaced the rad cap to original as well.
i had to pull over tho the side of the road to let the gauge come back down. so i think it may have an air lock in the system how do i remove it from the system??