I'm described the issue in the other thread. To be succinct, my Silverado 1500 the overheating after about 30 minutes and driving. After cooling off, I cracked the expansion tank cap and a huge amount of pressure pushed fluid everywhere. I refilled the coolant and later that week the radiator cracked. I replaced the usual suspects, water pump, thermostat, hoses, and...
Overheating with Coolant Back Pressure