How do you rebuild a brake caliper on a 1994 Chevy Lumina?

Answer 1

First let me say that braking system is a vital system that should never be short cut. I don't believe that a person should work on this system unless they are trained or have experience doing these type repairs. You can buy rebuilt calipers now so inexpensive many garages no longer do these type service at their shops.They prefer buy and install these items. Now with the answer.First you will remove the calipers and drain fliud from each caliper. Put plastic plugs on brake lines as not to lose fluid and introduce air in to Master Cylinder. Next push caliper pistons out of caliper bores and careful not to drop or scratch piston surface. Next remove old seals from caliper bores. Next clean bores with soapy water and brass brush.Next clean caliper pistons same way. Make sure all surface are dry and clean before assembly. Next use brake assembly lube to coat all surfaces in caliper bore and the surface of the pistons that are in the bore. Next place the new rubber seals in cailper bore with assembly lube and place dust boot on caliper piston. Insert piston into bore and push slow and even into bore until they reach bottom. Stretch dust boot over lip on cailper. You are now ready to reinstall and bleed brake system. Please heed my earlier warning if any doubt of you ability to perform this repair please take to a experience person for assistance.