To fix a kitchen sink faucet with low water pressure, check for clogs in the faucet aerator and clean or replace it if necessary. Inspect the water supply lines for any obstructions or leaks. Ensure that the shut-off valves are fully open and check the water pressure at other fixtures.

Fix low pressure by cleaning or replacing the aerator, checking supply lines, and ensuring valves are open. Verify pressure at other fixtures to diagnose the issue.