Smoke Procedure - Bosch J 41413-200 Operación Manual

1. Turn off any fans that may cause air movement around or near the vehicle. Note: It is not
recommended to use the tester in an outside repair bay area, because wind and sunlight
may affect temperature and your ability to see the smoke.
2. Install the nitrogen/smoke hose. Consult the service manual for vehicle-specific instructions
regarding connection location and adapters.
•
Some vehicles require that the nitrogen/smoke hose be connected at the front of the EVAP
system at the EVAP service port (an adapter may be necessary).
•
Other vehicles require the connection be made at the rear of the system using an adapter at the
fuel fill cap.
Note: Completely unwind the nitrogen/smoke hose from the bracket to optimize the
tester's performance.
3. Turn the NITROGEN/SMOKE valve on the control panel to SMOKE.
4. Press and release the remote switch to activate the tester and inject smoke into the EVAP
system. Note: The remote switch operates in a push-ON, push-OFF fashion.
5. Verify smoke has filled the EVAP system by opening the system opposite the end where smoke
is injected.
•
When injecting smoke at the service port or EVAP Service Access Port Tool, remove the fuel
fill cap, or temporarily leave the EVAP canister vent valve open, until smoke is observed. Then
close the system and continue testing.
•
If using a special tool fuel fill cap adapter at the filler neck, install the J-41413-VLV EVAP Port
Vent Tool at the service port until smoke is observed. Then remove the J-41413-VLV and
continue testing.
6. Press and release the remote switch to deactivate the tester. Note: Inject smoke in less than
two-minute cycles for optimum tester performance.
7. Introduce smoke into the system for an additional 60 seconds; continue introducing smoke at
15 second intervals, as necessary. Note: For optimum visual smoke performance, deactivate
the smoke flow and allow the system pressure to drop. Allowing the smoke to exit small
holes at a low flow rate greatly enhances visibility.
8. Using the high-intensity white light (J 41413-SPT), inspect the entire EVAP system path, and
look for the source of the leak indicated by the exiting smoke. Introduce smoke at 15 second
intervals, as needed, until the leak source is identified.
9. Repair the leak once it is identified.
Operating Instructions
Smoke Procedure (locate the leak)
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