Checking spark plugs

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Remove all spark plugs
Check the spark plugs for cracking in the porcelain, the spark gap and for carbon and other deposits if uncertain replace the spark plugs

Fig 2: Identifying Spark Plug
Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected?

YES
Refer to Replacing spark plug
NO
OKAY: Troubleshooting has been completed.