Lincoln Navigator: Evaporative Emissions - 3.5L EcoBoost (272kW/370PS) / Evaporative Emissions - Overview. Description and Operation
Overview
The EVAP
system prevents hydrocarbon emissions from entering the atmosphere by
storing fuel vapors and routing the vapors to the engine to be consumed
during normal engine operation.
The EVAP system consists of:
-
EVAP canister
-
EVAP canister purge valve
-
EVAP canister vent solenoid
-
Fuel Tank Pressure (FTP) sensor and tube
-
Easy Fuel (capless) fuel tank filler pipe
System Operation
System Diagram
Item
Description
1
LH Valve cover
2
Air Cleaner outlet pipe
3
EVAP canister purge valve
4
Upper intake manifold
5
PCV
6
RH valve cover
7
EVAP canister
8
Vapor blocking valve
9
Fuel Tank Pressure (F..
Other information:
Activation
Phase 1 - Leak Verification
Run the EVAP Test with the scan tool.
NOTE:
Some small leaks may not be detected using the EVAP Test. If the system
has passed the test but a leak is still suspected, then proceed to
Phase 2.
If the EVAP system failed the EVAP Test, then proceed to Phase 2.
Phase 2 - System Leak Check
Disc..
NOTE:
Coolant temperature will vary with ambient temperature and load.
Temperatures shown are for ambient temperature of 38° C (100° F). Red
arrows indicate a temperature over 90° C (194° F), Orange arrows
indicate a temperature of approximately 90° C (194° F), Blue arrows
indicate a temperature below 90° C (194° F).
Item
Description
1
Ra..