Workshop Manual

6E–320
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0440 – EVAP System (Cont'd)
Step NoYesValue(s)Action
5 Ignition “OFF”.
1. Disconnect the fuel tank vapor line and the EVAP
purge line from the EVAP canister.
2. Block the canister fitting for the fuel tank vapor line.
3. Connect a hand vacuum pump to the canister fitting
for the EVAP purge line.
4. Ensure that the EVAP canister vent solenoid is still
commanded “ON” (closed).
5. Attempt to apply vacuum to the EVAP canister.
Observe “Fuel tank pressure” on the Tech 2.
Does the Tech 2 indicate “Fuel tank pressure” at the
specified value?
1.47–1.51 V Go to Step 8 Go to Step 7
6 1. Visually/physically check for the following
conditions:
B Restricted fuel tank vapor line.
B Restricted EVAP purge line.
2. If a problem is found, repair as necessary.
Was a problem found?
— Verify repair
Go to DTC
P0452 or
DTC P0453
7 1. Visually/physically check for the following
conditions:
B Vent hose disconnected or the damaged.
B EVAP canister damaged.
2. If a problem is found, repair as necessary.
Was a problem found?
— Verify repair Go to Step 11
8 1. Visually/physically check for the following
conditions:
B Missing or faulty fuel cap.
B Disconnected or leaking fuel tank vapor line.
B Disconnected or damaged EVAP purge line.
2. If a problem is found, repair as necessary.
Was a problem found?
— Verify repair Go to Step 9
9 Replace the EVAP canister purge solenoid.
Is the action complete?
— Verify repair —
10 Locate and repair cause of no source vacuum to the
EVAP canister purge solenoid.
Is the action complete?
— Verify repair —
11 Replace the EVAP canister vent solenoid.
Is the action complete?
— Verify repair —