thanks for the write up. is it part of the normal process to fill with water then drain again? is the reservoir tank open when you do this?
seems like other than the petcock no other place to drain which is good. i have to wait for cooler weather to do mine as i'm gonna change all hoses as well and bought the 50 dollar pliers set to help me out. looks tight in spaces.
what is the reason for the 20 dollar funnel vs a 99 cent one? is there kickback on the fluid trying to get out?
If you drain the radiator once, original some of the original coolant mixture remains in the engine block. I fill with distilled water, run, and drain to get more of the original stuff out. Iíve done this for years with a variety of cars in the family.
The funnel has numerous fittings and several caps, which enable you to install them in the reservoir jug (many vehicle no longer have a radiator cap - including the 2014 Impala). After you install the fitting and cap, the funnel installs in the fitting. You can fill the reservoir, then start the engine and continue filling the reservoir.
Do not fill the large, see-through funnel more than one-third full. As the engine heats up, the thermostat opens and air is expelled - it ďburpsĒ into the drip less funnel and does not overflow the reservoir or funnel. If the coolant continues to flow into the reservoir, you can add more coolant to the funnel (not more than one-third full to prevent an overflow).
Once filled and the air is expelled, if there is any coolant remaining in the funnel - you can squeeze the upper radiator hose to force some coolant back into the funnel - and then insert a long plug (included in kit) into the funnel. Release the squeezed upper hose and the coolant level will drop slightly in the reservoir. Then simply lift the funnel (with the plug) and return it to your original coolant container (or if filling through the radiator cap opening), add the coolant to the overflow jug.
The funnel system can also be installed in a radiator cap opening, including one that is mounted at an angle.
I have changed coolant on many vehicles for more than 40+ years. This funnel tool and fittings was one of the easiest to use, prevented any overflow or spillage of coolant, and was worth every penny - especially if you work on multiple vehicles.