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9. VERIFY EVAPORATIVE EMISSION LEAK WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent To continue testing you will need Miller Tool #8404 Evaporative Emission Leak Detector (EELD). NOTE: The fuel tank should have between 20% and 80% of fuel tank capacity to properly test the Evap Block the vent hose of the EVAP Canister. Connect shop air to the EELD. Set the smoke/air control switch to AIR. Insert the tester’s AIR supply tip (clear hose) into the .040 orifice on the tester’s control panel. Press the remote smoke/air start button. Position the red flag on the air flow meter so it is aligned with the indicator ball. When the calibration is complete, release the remote button. The EELD flow meter is now calibrated in liters per Install the service port adapter #8404-14 on the vehicle’s service port (if equipped) or install the #8404-ADP into the Connect the Air supply hose from the EELD to the service port (if equipped) or to the #8404-ADP adapter. Press the remote button to activate AIR flow. Compare the flow meter indicator ball reading to the red flag. ABOVE the red flag indicates a leak present. BELOW the red flag indicates a sealed system. Is the indicator ball above the red flag? Yes >> Go To 10 No >> Go To 11 10. EVAPORATIVE EMISSION LEAK DETECTION NOTE: A thorough visual inspection of the Evap system hoses, tubes, and connections may save time in Connect the SMOKE supply tip (black hose) to the service port (if equipped) or to the #8404-ADP adapter. Set the smoke/air control switch to SMOKE. NOTE: The flow meter indicator ball will not move at this point. NOTE: Make sure that smoke has filled the EVAP system by continuing to press the remote smoke/air start NOTE: For optimal performance, introduce smoke into the system for an additional 60 seconds; continue If a leak is concealed from view (i.e., top of fuel tank), release the remote smoke/air start button, and use the ultra- The exiting smoke deposits a residual fluid that is either bright green or bright yellow in color when viewed with a 9 - 420 ENGINE ELECTRICAL DIAGNOSTICS LX |