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P0440-GENERAL EVAP SYSTEM FAILURE —
TEST
6
To continue testing you will need Miller Tool #8404 Evaporative Emission Leak
Detector (EELD).
WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources
away from the test area to prevent the ignition of explosive gases. Keep the
test area well ventilated.
NOTE: The fuel tank should have between 20% and 80% of fuel tank capacity
to properly test the Evap system.
Connect the red power lead of EELD to the battery positive terminal and the black
ground lead to battery negative terminal.
NOTE: See Charts and Graph support material EELD Calibration Setup for
an example.
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 is now
calibrated the flow meter in liters per minute.
Install the service port adapter #8404-14 on the vehicle's service port (if equipped) or
install the #8404-ADP service adapter in the NVLD filter line.
Connect the Air supply hose from the EELD to the service port.
Press the remote button to activate AIR flow.
NOTE: Larger volume fuel tanks, lower fuel levels or if the vehicle is
equipped with a Flow Management Valve, this may indicate high flow and
will require 4 to 5 minutes to fill.
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 7
→ Go To 8
No
Continued
ACTION
381
DRIVEABILITY - NGC
APPLICABILITY
All
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