Checking the ignition system
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Check for moisture in the spark plug wells.
Check the spark plugs for damage and wear. If there is any doubt about their function, replace the spark plugs.
Check the ground terminals for the ignition coils. Check for contact resistance and oxidation according to Contact resistance and oxidation .
Remedy as necessary.
Reinstall the components and connectors.
- Continue
Refer to Verification