The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What did you do with your truck today, Part 3

dsraven · 01-25-2022, 01:26 PM

just a heads up to anybody doing coolant stuff, the system is usually only gonna take the pressure of something close to what is specified on the rad cap or other damage can occur, blown seals, hoses or their quick connects, gaskets rad core solder joints, or, if you have a heater core, it will likely blow a tube or an end cap off. I have seen guys flush their cooling systems with the garden hose as well. just remember that the garden hose pressure is likely around 65 psi, good to check that first or gate back the supply and flow water before you install the hose onto the system and then remove the nozzle from the system before you restart again so pressure can't build in the hose when the nozzle is shut off.

01-25-2022, 01:26 PM	#5092
dsraven Registered User Join Date: Nov 2010 Location: calgary alberta Posts: 7,884	Re: What did you do with your truck today, Part 3 just a heads up to anybody doing coolant stuff, the system is usually only gonna take the pressure of something close to what is specified on the rad cap or other damage can occur, blown seals, hoses or their quick connects, gaskets rad core solder joints, or, if you have a heater core, it will likely blow a tube or an end cap off. I have seen guys flush their cooling systems with the garden hose as well. just remember that the garden hose pressure is likely around 65 psi, good to check that first or gate back the supply and flow water before you install the hose onto the system and then remove the nozzle from the system before you restart again so pressure can't build in the hose when the nozzle is shut off.