How to bleed coolant without bleeder screw?
#11
That design was replaced part way through the DII production run. It had by then become known as a failure point, where the screw and its mount would "blow out," causing a catastrophic failure of the cooling system. In the updated design, the bleed screw was moved to the T fitting. I recommend you spend the few bucks to update the upper radiator hose in your truck to the "new" design version.
I know this in part because it happened with my truck. After I replaced the headgaskets 11 years ago this month, the cooling system was again pressurized and two weak points were soon "revealed."
First was the bleed screw. It blew out mid-way through my 15-mile drive home after work. Thankfully I was at a stoplight next to a gas station. I pulled into the gas station lot and used a golf tee held in place with some duct tape to plug the hole well enough to limp the rest of the way home after topping up the system with water. Fun times!!! The second weak spot revealed was the throttle body heater gasket; a well-known problem.
Last edited by mln01; 06-24-2021 at 06:26 AM.
#14
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