Routine 215 - Spark Knock (Pings)
ROUTINE 215 - SPARK KNOCK (PINGS)
| SYSTEM & Component(s) | GO TO: |
|---|---|
| IGNITION: Timing | See ADJUSTMENTS |
| EEC: Quick Test | See TESTS W/CODES |
| VACUUM DISTRIBUTION: Vacuum Leaks PVS | Perform a visual & audible inspection, See SYSTEM/COMP TESTS |
| COOLING: Overheating | Check cooling System |
| BASIC ENGINE: Oil Level, Compression Check, Intake Manifold Gasket | See BASIC TESTING |
| FUEL DELIVERY: Injectors | See SYSTEM/COMP TESTS |
| PCV: Valve | See SYSTEM/COMP TESTS |
| EGR: Verify Correct Application, Then Diagnose | See SYSTEM/COMP TESTS |
| INDUCTION: Air Cleaner Duct & Valve Assembly | See SYSTEM/COMP TESTS |
| THERMACTOR: Thermactor System Components | See SYSTEM/COMP TESTS |
| BASE Transmission (E40D NON-DIESEL ONLY): Transmission Controls | See TESTS W/CODES |
NOTE:
If the above fails to correct the condition, it is recommended that the owner change his source of Fuel and use higher octane Fuel.