How do you remove and reinstall the brake-caliper guide pins in a 1990 Ford Ranger 2.9L.
Do you want information on the front or the rear calipers?
If it's for the front then you should start by doing one side at a time so if you forget anything you can go to the other side for reference.
Use a clean siphon or suction hose to remove a portion of the fluid from the master cylinder. Discard the removed fluid. CAUTION: System contamination may result if anything other than a clean device is used to remove fluid from master cylinder.
Raise the vehicle and install safety stands. Remove wheel and tire assembly. Use an eight-inch C-clamp to move the piston back into its bore as follows: Place the head of the C-clamp against the caliper, and the screw end of the C-clamp against the outer pad below the spring clip. CAUTION: Do not position C-clamp on the spring clip. Also, do not compress piston further than is required to disengage torque buttons from caliper. Damage to the spring clip will result. Replace pad if spring clip is bent or damaged.
CAUTION: Do not attempt to "bottom" the piston in the bore at this time. Use an old, worn out brake pad or block of wood and the C-clamp to bottom the piston once caliper is removed from rotor, and the pads are removed from the caliper. Tighten the clamp until the torque buttons just clear the caliper (about 3 mm [1/8 in]). Remove the C-clamp.
CAUTION: Do not use a screwdriver or similar tool to pry piston away from the rotor. Clean excess dirt from area around pin tabs. Tap upper caliper pin towards inboard side until pin locking tabs touch the spindle face. Insert a screwdriver into the slot provided behind the pin tabs on the inboard side of the pin. Use needle nose pliers to compress the outboard end of the pin while prying at the same time with the screwdriver, until tabs slip into the spindle groove. Place one end of a punch (approximately 7/16 inch diameter) against the end of the caliper pin and drive the caliper pin out of the caliper slide groove. Repeat removal procedure for lower pin. Remove the caliper from the rotor. If the caliper is to be removed for service, disconnect the brake hose from the caliper. If not, secure the caliper with wire.
CAUTION: Do not let the caliper hang with its weight on the brake hose. Compress the anti-rattle clip and remove the inner pad from the caliper.
Reverse procedure for installation.
If you need diagrams you can get them at ALLDATAdiy.com .
Thanks a lot TechHelp2. This is excellent information. Much more than I expected.
If you need any more information I will be happy to assist you.