How do you change brake pads for 1990 honda accord ?

Take wheel off, remove caliper( 10mm socket) compress caliper piston with C-clamp or similar, insert new pads, install. If you do not know what you are doing, STOP. Brakes are something NOT to be played with.
How do you change brake pads for 1990 honda accord ?
Buy A hanes auto manual for the year of your car. It will show you how to do it step by step. I would not be without one for any car I own..My oldest is a manual for a 52 Chev. Just one of the cars I owned
How do you change brake pads for 1990 honda accord ?
The manual for your car is nice, but can be costly. The only thing you didn't mention is if it was the rear or front. Do to the year of the vehicle I am going to assume front. You need to start by having the car on a level surface and jack up the end with the problem. Before you do this you need to break the lug nuts loose, do not take them off yet, just break them loose. Make sure to block the wheels opposite the side you are jacking up. Then jack up the car, remove the lug nuts and wheels. After this you will need to remove the caliper. The caliper is held by 2 bolts. After you remove the two bolts, you can take a pry bar, or a heavy screw driver to slide the caliper up and out of the way. Once this is done, you can remove the pads. Then there will be 2 more bolts to break loose on the pad holder. After removing these, you can take the rotors off, get them measured for thickness. If they are too thin, you will need to replace them. If they still have meat on them, you can have them turned and re-surfaced to re-use them. Clean the area with some type of brake clean, which can be picked up at your local automotive store. It will be an aerosol type can around 3 or 4 bucks. You will also need to find something to compress the piston on the caliper. This needs to be done so the new pads will fit and the caliper will slide over the new pads you install. Re-install the pad holder, and I suggest using some locktite on the 2 bolts before you re-install them. Before you add the new pads, your new pads will come with some type of silicon lube. You will need to lube the metal plates that are on the pad holder, so the new pads will slide easily and not stick when the brakes are applied. Also take the bolts out of the caliper, if you didn't already and lube the long parts that go back into the caliper, so the caliper doesn't stick and slides freely when the brakes are applied. Make sure to clean them before lubing them, and use the brake clean you bought. Wipe them down with a dry rag, then lube them. Before you put the pads on, make sure they are the correct ones by putting them up against the old ones to see if they are the same size and type. Then install them. Put the caliper back on, and use a very little bit of locktite on the caliper bolts. Very important!!! Make sure you did not twist the brake line when re-installing the caliper, this will cause you problems later if you twist a line. Re-tighten the bolts, but don't over torque them, you can strip them out, just hand tighten and give them a little more. Then you can start putting the wheels back on. Lower the vehicle, and tighten all the lug nuts. Remove the blocks from the opposite side of the vehicle. That's it, you just did your first break job, correctly and safely. Good luck!!