Hey Guys,
I'm having a tough time figuring this or out. I've got a 1957 GMC stepside that is overheating. I gave it a good flush & replaced the fluids, replaced the thermostat & thermostat housing because it was filled with barnacle. It has an electric fan & I just put on a blade fan as well. Has the original radiator with no shroud. I know a shroud helps but & still don't think it should overheat as fast as it should. My next step is to replace the radiator. How do I know if my engine water passages are clean or blocked? Can I clean the passages while the motor is still in the car? I don't want to put on a brand new radiator then plug it up with crap that is possibly in the motor. Is there a test that can be done to see if I have a blown head gasket. I don't see any water in the oil. Please help. I want to drive my baby without stressing out about overheating.
Thanks.
