2005 rendezvous overheating
We have a 2005 Buick rendezvous
one day it started overheating
instantly as soon as you were
started driving it. My husband
replaced the thermostat and
radiator cap and flushed it he
could drive it then for about an
hour but when he got on the
highway at higher speeds it would
have still overheat. Do you think
it's a head gasket problem? What
he did in repairs did help it some
so I wonder if it's possibly
something else besides head
gasket?