Howoften doyouchange differential flluid - 2004 Chevrolet Express

The flexible brake hoses that screw into the calipers are the most neglected part of most brake systems, along with dirty flluid. The flex hoses are probably swollen inside and holding pressure on the calipers. Remove the flex brake hoses and try to blow through them. If you cannot or it is very difficult the hoses are bad.At a minimum I recommend replacing hoses on both sides. As for stuck pistons, try collapsing the calipers. If the pistons won't retract then replace the calipers too.

Here's a link on your slave cylinder Joe.

You might need to replace the master cylinder.

CAPACITIES
Automatic transmission, 42LE Initial Fill..........4.6 quarts [1]

automatic transmission, Total Fill
4 speed 42LE..........9.3 quarts
Differential, Front..........1.5 pints [2]

1. With ENG at operating temperature, shift through all gears. Check fluid level in PARK and add fluid as needed.

2. 42LE transaxles built after 7-26-99 fill to 3/8" (9mm) below fill hole.

Hope This Helps.

********Make sure that you use the recommended type flluid ATF+4, as there are several types available. Using the wrong type of fluid will damage your transmission********

Check for propper brake fluid on system, somtimes human error can put power steering fluid intead of brake flluid. If this has ocurr, you must bleed all the brakes system. Sammyc47

flow the hose from your ratater to your water pump undo 2 bolts clean and remove the old gasket replace with now one put new thermostat in rebolt not to tight that you will crake it and check flluids and make sure it not leaking ...

Yes you can do that and it will help a lot but before you do that is best if you remove all the old fluid from the vehicle inclusing the oil in the lines

The engine mount on the passenger side of the engine bay sounds like the problem. This would create a single clicking noise under engine load.
So you need to replace the right upper motor mount.

You should have two plugs on the back of the unit (in most cases)
One is higher than the other.(usually they are about 1" in size) High one is fill...remove that one first (if you can't remove it then you can't refill it, so don't remove the lower one) Once fill is free, remove the drain, wait till fluid stops running then replace drain plug and fill till fluid just seeps from the lower edge of the hole (on level ground) Replace the fill nut and you are done!

The power steering pump(with reservoir attached) is on the passenger side of engine on the bottom left side under the alternator.