FixVault
Home
›
Buick
›
2003
›
Regal LS
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls Troubleshooting - No Codes - 3.8L
›
Symptoms
›
Detonation/Spark Knock
›
Ignition System
Ignition System
Inspect the spark plugs for proper heat range and reach.