I bought a 2021 Model Y with a cracked octovalve. It was in an accident so not under warranty. I took the octovalve out and plasti-welded the crack. I put it back in the car but now there is air in the system (I think) and the two pumps keep running. I left it for 24 hours thinking it will bleed the air out by itself but all I got was pumps that might be broken (they were squeaking most likely because they were running dry). I tried unplugging the top hoses and pouring glycol into them directly, I tried turning the ac/heat on (the car does not produce any heat nor does the ac work).
It used to be that you turn the car off (disconnect the 12v battery and take out the emergency loop/disconnect) but with the Model Y it’s almost impossible to turn it off - the car is fully functional without the 12v battery and you need to cut the emergency loop, you can’t disconnect it). Anyhow, if you turn the off the car and turn it back on, it checks all the systems including the pumps and valves and in essence purges itself. At least that is theory on the older Teslas. But since I can’t turn off the car I have no idea how to purge the air from the cooling system. Any ideas?
It used to be that you turn the car off (disconnect the 12v battery and take out the emergency loop/disconnect) but with the Model Y it’s almost impossible to turn it off - the car is fully functional without the 12v battery and you need to cut the emergency loop, you can’t disconnect it). Anyhow, if you turn the off the car and turn it back on, it checks all the systems including the pumps and valves and in essence purges itself. At least that is theory on the older Teslas. But since I can’t turn off the car I have no idea how to purge the air from the cooling system. Any ideas?