Chapter 4: The Fuel System and Governor
37
EVAP fuel tank
Starting with the 2009 model year, an EVAP fuel tank
will be used in place of the charcoal canister system to
reduce the evaporative emissions.
The EVAP tank, like the charcoal canister tank is made
out of a material that does not allow hydrocarbons to
seep through it. The differences between the two tanks
are that the EVAP tank has a channel machined into
the insert to allow the tank to vent through the cap and
it does not have a hole for the roll over valve.
See Figure 4.21.
The trapped vapors are then allowed to escape
through a tiny passage in the filler neck. The passage
limits how fast the vapor can reach the vent in the fuel
cap.
NOTE: A vented gas cap must be used with the
EVAP fuel tank. See Figure 4.22.
Figure 4.21
Figure 4.22
Vented
Unvented
To remove/replace the fuel tank:
1. Drain the tank.
2. Disconnect the fuel line from the tank.
3. Remove the bottom screw using a 10mm
wrench. See Figure 4.23.
4. Remove the top two screws and remove the
tank. See Figure 4.24.
5. Install the tank by following the above steps in
reverse order.
6. Test run the engine in a safe area before return-
ing to service.
Figure 4.23
Remove this screw
Figure 4.24
Remove these screws
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