Here's how to retract the rear brake pistons on a 2001 Lincoln LS:
1. Find the Retraction Screw: This is usually a small, square or hexagonal screw located on the back of the caliper piston. It might be partially hidden behind a dust shield or boot. You'll need a small socket or wrench to turn it. Sometimes you can see it fairly easily; other times, you need to remove parts to find it (a shop manual will show this).
2. Turn the Screw: Slowly and carefully turn the retraction screw clockwise. This will push the piston back into the caliper. Do not force it. If it resists, stop and check for obstructions. A little lubricant (brake caliper grease is ideal) on the threads can help.
3. Monitor Piston Movement: As you turn the screw, observe the piston to ensure it's retracting evenly.
4. Repeat if Necessary: If you're replacing brake pads, you'll need to retract the piston enough to accommodate the new, thicker pads. Do not retract it completely, or you risk damage to the internal seals.
5. Reassembly: Once the piston is sufficiently retracted, proceed with replacing the brake pads and reassembling the caliper.
Important Considerations:
* Shop Manual: A shop manual specific to your 2001 Lincoln LS is highly recommended. It will have diagrams and detailed instructions for your specific model. This is crucial to avoid damaging the caliper.
* Tools: You'll need the correct size socket or wrench for the retraction screw. A small ratchet wrench will give you better control.
* Safety: Always use appropriate safety precautions when working on brakes. Wear safety glasses and gloves.
* Professional Help: If you're uncomfortable working on your brakes, it's best to take your vehicle to a qualified mechanic. Improperly retracting the brake pistons can lead to brake failure and serious injury.
If you cannot locate the screw, consult a repair manual or take it to a mechanic. Forcing the piston with a C-clamp on this type of caliper can damage the seals and cause brake problems.