Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to replace luggage wheels [title] Wipe your wheels down before replacing them. [step] Sometimes wheels don't work because they're caked with dirt or debris. Clean with a damp cloth and look for anything wedged in the wheel to make sure it needs to be replaced.

Ending1: [substeps] If you notice it makes a rattling or crackling noise when you work in the dirt and debris, see a doctor. [title] Force down the tailgate or door handles. Ending2: You may find that a thorough cleaning the wheels and removing anything lodged in them fixes the problem. [substeps] Washing the wheels also gives you a clean surface to work with as you replace them. Ending3: Also make sure your wheels are completely dry first so you can buy new wheels if needed. [title] Loosen the lug nuts in all four wheels if they get in the way. Ending4: If you see something stuck in the wheel, wipe it up well before replacing it. [substeps] While some wheels lack shine due to dirt buildup on them, others do well with a soft cloth.

Answer format: ending1/ending2/ending3/ending4