How do you change the spark plugs in a 1987 Chevy Celebrity?
To change the spark plugs in a Chevy Celebrity:
1. Give the spark plug boot a twist to free it up from the spark
plug, then pull on the boot to remove the spark plug wire from the
spark plug.
2. Use a 5/8" spark plug socket with an extension and ratchet or
breaker bar to loosen then remove the spark plug.
3. Set the gap on the new plug to .045" then screw it back into
the spark plug hole in the head. Tighten the spark plug and replace
the spark plug wire.
I change the spark plugs one at a time to keep from getting the
spark plug wires on the wrong spark plug.