New Cadillacs do not have a transmission dip stick...
Ok I didnt want to get bogged down into this level of detail but here is how you change the transmission fluid in an automatic transmission.
- Suck the old oil out of the pan and store it in a container
- Drop the pan, change the filter(s) and reinstall the pan.
- Take the fluid from step one and put back in pan (will not affect filter because the fluid going in the dipstick is not filtered
) - The transmission coolant lines are basically a big circle so I would need to interrupt the circle. (see picture below)
- The engine would then start which would activate the hydraulic pump in the transmission. This dirty fluid is then transferred through the system to the 'dirty' tank..
- I would need to match the psi with the pump that pumps the clean fluid. (why it is done this way I am not sure, it seems like you would be able to just use the suction but that is not the case with commercial transmission exchangers)
here is how they work if you are interested
My original question is this... how do i
- Measure psi/flow in one hose (only fluid / not air)
- Match that psi/flow in another with a pump