Pinpoint Test D: Purge Hose Bung Tests
WARNING: This page is about a different car, the 2018 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
- D1: PURGE HOSE BUNG TEST 1
This test is performed when a DTC indicates that a leak is present but an external leak has not been identified using the combustible gas detector.
- Disconnect the purge hose from the purge valve
- Install the appropriate bung to the purge hose
- Using the combustible gas detector, check for fuel vapor near the bung; allow fuel vapor to dissipate before proceeding
- Using the manufacturer approved diagnostic system, perform routine - Evaporative System Diagnostic Check - and use the combustible gas detector to check for leaks
Test passed?
- Yes : Remove the bung. Install a new purge valve. GO to Pinpoint Test E .
- No : GO to D2.
- D2: PURGE HOSE BUNG TEST 2
- Consider the results of the previous test.
Was the source of the leak identified?
- Yes : Repair as necessary. GO to Pinpoint Test E .
- No : GO to D3.
- D3: PURGE HOSE BUNG TEST 3
- Remove the bung
- Reconnect the purge hose to the purge valve
- Using the manufacturer approved diagnostic system, perform routine - Evaporative System Diagnostic Check - and use the combustible gas detector to check for leaks
Was the source of the leak identified?
- Yes : Repair as necessary. GO to Pinpoint Test E .
- No : Install a new diagnostic module tank leakage module. GO to Pinpoint Test E .