Asking a question for my job.
An 02 WRX has a front end collision. The radiator is replaced as part of the needed work. The shop delivers the car back. Next day it overheats. Goes back to the shop, they bleed it again, drive it and let it run for 2 hours and claim it is fine. Couple of weeks later, over heats again. To a dealer. They bleed it and give it back. Over heats again and blows out the bottom of the radiator. Shop replaces the radiator (aftermarket like the first time) and the thermostat and delivers the car back again. Weeks later is overheats. Back to dealer. They claim head gaskets as exhaust gases are pushing into the coolant reservoir. Dealer does the head gasket replacement and delivers the car. Days later, it overheats again. Dealer now claims the aftermarket radiator is the cause. I am assuming that the fan switch and relays are good and the fan is working (would assume the dealer would check everything - even since they knew the overheating history.) Do these cars have a history of problems with over heating or does anyone have any ideas of the cause? Thanks in advance.