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:
Removal
NOTE:
DSM (driver front seat module) shown, SCMB (front passenger seat control module) is similar.
NOTE:
Removal steps in this procedure may contain installation details.
All vehicles
NOTE:
This step is only necessary when installing a new component.
NOTE:
The PMI (programmable module installation)
process must begin with the current DSM (driver fr..
Inspection
NOTE:
A coolant leak in the heater hose could follow the
heater core tube to the heater core and appear as a leak in the heater
core.
Inspect for evidence of coolant leakage at the heater hose to heater core attachments.
NOTE:
Spring-type clamps are installed as original
equipment. Installation and overtightening of nonspecified clamps can ..