Engine Error
P0303
Cylinder 3 Misfire Detected
Severity
High
Symptoms
Power loss, jerky acceleration, ticking noise
Common Causes
- Fouled spark plug
- Ignition coil failure
- Vacuum leak near cyl 3
- Engine mechanical fault
How to Fix
- 1 Replace spark plug
- 2 Test coil pack
- 3 Inspect vacuum lines
- 4 Perform leak-down test
Estimated Repair Cost
USD
$100
–
$500
Coil replacement: $150 - $300