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It's Item# 14 (9S320 Canister remote hose) on the picture and description Bedrck47 posted above...
On my 2003 that hose goes up parallel to the Fuel Filler Tube for the Fuel Tank and its zip tied to the Filler Neck at the top on the inside of the fender. Its the vent tube for the Emission Canisters... mine too smells a little like fuel when I drive the truck and park it in the drive way.
Evaporative Emissions
Item Part Number Description
1 — Evaporative emissions test port
2 — Evaporative emissions return tube
3 9C915 Evaporative emissions canister purge valve
4 — Throttle body spacer
5 9B593 Fuel vapor vent valve
6 9C015 Tank vapor line assembly
7 9K007 Fuel tank assembly
8 9C016 Canister vapor line
9 9D925 Vapor line connector sleeve
10 9F945 Evaporative emissions canister vent solenoid
11 9D665 Evaporative emissions canister bracket
12 9K324 Rear vapor hose
13 9B328 Dust separator
14 9S320 Canister remote hose
15 9D653 Evaporative emissions canister
16 9B593 Fuel vapor vent valve
17 9C052 Fuel tank pressure sensor
The evaporative emissions (EVAP) system:
prevents hydrocarbon emissions from reaching the atmosphere.
stores fuel vapors in the evaporative emissions (EVAP) canister that are generated during vehicle operation or hot soak, until they can be consumed by the engine during normal engine operation.
routes the stored fuel vapors to the engine during engine operation.
is controlled by the powertrain control module (PCM), which uses various sensor inputs to calculate the desired amount of purge flow. The PCM regulates the purge flow, induced by the application of intake manifold vacuum, by varying the duty cycle applied to the EVAP canister purge valve.
has an evaporative emissions (EVAP) test port for test purposes.
The fuel vapors are routed:
from the fuel tank through the fuel vapor vent valves.
to the (EVAP) canister through a vapor line.
to the engine when the EVAP canister purge valve is opened by the PCM.
The fuel tank pressure (FTP) sensor:
monitors the pressure levels in the fuel tank.
communicates the pressure reading to the PCM during the OBD II leak test.
The evaporative emissions (EVAP) canister:
is located above the spare tire carrier behind the fuel tank.
contains activated carbon.
stores fuel vapors.
The fuel tank filler cap:
relieves system pressure above 14 kPa (56.21 inches H 2 O).
relieves system vacuum below 3.8 kPa (15.26 inches H 2 O).
The canister vent solenoid:
is normally open.
seals the evaporative emissions system for the OBD II leak and pressure tests.
is mounted to the evaporative emissions canister.
is repaired as a separate item.
The evaporative emissions (EVAP) canister purge valve:
is normally closed.
regulates the purging of the EVAP canister.
is controlled by the PCM.
The evaporative emissions (EVAP) system test port:
is located in the EVAP canister purge valve.
is used to connect the Evaporative Emissions System Leak Tester to the EVAP system.
Might be Item # 8 cant say for sure
Yeah that hose is just zip tied along the fuel tank filler hose . Here's a pic.
-Mike
Fuel Tank Purge Canister Vent Hose .....
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just making sure, no engine codes here?