Originally Posted by SteelDirigible
i guess what i meant, its not just a drain and fill, you have to bleed brakes and all that. is that correct?
for coolant you can get a flush and fill kit for like $20 and then just need your coolant. real easy to do yourself.
Yes, you are right. You have to bleed out the old fluid, while topping off the master cylinder reservoir with fresh fluid, until fresh comes out of the bleeders. This is easy to do if you have a pressure bleeder, takes a half hour tops.
If you are using a vacuum bleeder, or using an assistant to pump the pedal, you'll be at it all day.
For coolant, it is very easy to flush out the radiator, but almost impossible to replace the couple gallons in the block unless there is a block drain plug. Depending on the design, sometimes you can simply remove the knock sensor or coolant temp sensor and achieve the same results. This is dependent on the sensor location.
For example, on a 1994 Chevrolet S-10 Blazer with the 4.3L Vortec V6, the knock sensor is in the side of the block on the driver's side, down low. It threads into the block, and goes to the water jacket. Removing it effectively drains the block of coolant.