Pinpoint Test G: Exhaust Manifold & Turbocharger Leakage Test - Visual Inspection

1. Check the fitment and integrity of the following components for leaks. Refer to: DIESEL PARTICULATE FILTER
2. Differential pressure sensor.
3. Pre-catalytic converter exhaust gas temperature sensor.
4. Heated Oxygen Sensor (HO2S).
5. DPF  .
6. Post DPF  exhaust gas temperature sensor.
7. Pre DPF  exhaust gas temperature sensor.
8. Check the integrity and joints of the high pressure EGR  valve to the exhaust manifold. REFER to: ENGINE EMISSION CONTROL
9. Check the fitment and integrity of the Exhaust Gas Pressure sensor for leaks. REFER to: ELECTRONIC ENGINE CONTROLS
   NOTE:

   • Soot stains around the turbo actuator as shown in image 1 are normal. Soot mass around the turbo actuator arm is NOT an indication of a failure.
   • Excessive soot staining around the turbo as shown in image 2 is due to the turbo catalyst joint. Soot staining around the turbo joint is NOT a turbocharger failure - Do not replace turbocharger until proven faulty. Rectify the leak and retest.
10. Check the fitment and integrity of the turbocharger system joints and exhaust manifold for leaks.

    Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

11. Check to see if the turbocharger leakage is identified from the V-Band Clamp, if required repair with new one following Refer to: CATALYTIC CONVERTER TO TURBOCHARGER CLAMP (G2782561)

Is there any signs of a exhaust gas leak from the turbocharger?

Yes 

Rectify the exhaust leak as required and clear DTC  . Once the fault is rectified, start the engine and check for leaks. If the fault persists, continue to GO to PINPOINT TEST H .

No 

GO to PINPOINT TEST H .