LW2 V6-3.0L VIN R (2000)
Evaporative Fuel Vapor Return Hose: Customer Interest
Emissions - MIL ON/DTC P0440/P0455 (EVAP) Set
BULLETIN NO.: 01-T-02A
ISSUE DATE: February, 2001
CATEGORY TYPE: ENGINE - 02
CATEGORY: Fuel
CORPORATION NO.: 00-06-04-056R
SUBJECT:
(MIL) SERVICE ENGINE SOON Telltale Is Illuminated With DTC P0440 - EVAP System or DTC P0455 - EVAP System Leak Detected (Inspect Fill
Limit Vent Valve [FLVV] Hose Connection and Replace Fuel Tank If Necessary)
Due to a change in PARTS REQUIREMENTS, this bulletin has been revised and supersedes bulletin 01-T-02, which should be discarded.
MODELS AFFECTED:
2000-2001 Saturn L-Series vehicles
CONDITION:
Some customers may comment that the (MIL) SERVICE ENGINE SOON is illuminated and DTC P0440 (L61) or DTC P0455 (L81) has been stored.
CAUSE:
DTCs and an EVAP system leak may be caused by the convoluted vent hose between the EVAP canister and the fill limit vent valve (FLVV)
disconnecting from the hose fitting on the FLVV
CORRECTION:
Follow the procedures in this bulletin to inspect the FLVV hose connection.
1.
DTC P0440 or P0455 may be caused by other EVAP system leaks besides the condition described in this bulletin. Perform a complete visual
inspection of the EVAP system before any disassembly of components looking for any of the following leak conditions, repair as necessary.
^
Fuel cap missing, improperly installed, or leaking
^
EVAP Vent Hose loose or damaged
^
EVAP Purge Solenoid disconnected Fuel filler neck leaking
2.
If no EVAP leaks are found while inspecting the components in step 1, inspect the following components on the fuel tank assembly for EVAP
leaks, and repair as necessary.
^
EVAP canister
^
Fuel Pump 0-ring Seal
^
Disconnected or damaged fuel tank vapor lines
3.
Closely inspect FLVV hose connection for proper seating and engagement on the FLVV.
