If you mean that the wire came out of the boot, then pull the boot off of the spark plug and use a spark plug socket to remove the spark plug.

Spark plug wire not connected to spark plug?

Spark plug wire connected to Wrong spark plug?

Vacuum line disconnected?

Bad spark plug or wire?

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.

Champion Spark Plug QC12YC

Give the spark plug boot a twist to free it from the spark plug then pull it off of the spark plug by the boot.