Series 50 – Section 23.6 Faulty Fuel Injector

Section 23.6
Faulty Fuel Injector

To determine if a faulty fuel injector is causing excessive white smoke, perform the following:‪

1. Check for faulty fuel injector; refer to "16.5 Faulty Fuel Injector" .
2. Check for faulty fuel injector repair; refer to "16.5.1 Faulty Fuel Injector Repair" .
3. Verify fuel injector repair; refer to "23.6.1 Test the Engine with Repaired Fuel Injector" .

Section 23.6.1
Test the Engine with Repaired Fuel Injector

Perform the following to determine if the fuel injector repair resolved excessive white smoke:‪

1. Start and run the engine.
2. Run the engine at idle with a no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range.
3. Visually inspect exhaust for excessive white smoke.
   1. If the engine exhaust emission appears normal, no further troubleshooting is required. Shut the engine down.
   2. If the engine exhaust emission is excessively white, shut the engine down. Check for faulty electronic control module; refer to "23.7 Faulty Electronic Control Module" .