what would cause the coolant to come out the overflow tube all the time
we fill up the tank and it starts to get warm and it starts coming out the
overflow tube.and we've changed the thermastat and waterpump and the cap.
you could have a bad radiator cap, but I'm thinking that you may have air in the system that needs to be bleed out. https://www.youtube.com/watch?v=zUpXgAJ1gjU
Are you filling the coolent reservoir past the max fill line?
still sounds like the cap and just because its new dont mean its good. and like Joemom said check the bleeder screw at the thermastat housing have it open eng running and filling the rad. as soon as coolant comes out steady shut the screw top off the rad. install the cap and shut off the motor.
Looking for a Used Grand Am in your area?
CarGurus has 1,703 nationwide Grand Am listings starting at $1,995.
Search Pontiac Grand Am Questions
Pontiac Grand Am Experts