Ford Escape: Evaporative Emissions / Description and Operation - Evaporative Emissions - Overview
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
-
Fuel Tank Pressure (FTP) sensor and tube
-
Easy Fuel™ (capless) fuel tank filler pipe
-
Fuel vapor vent valve (FVVV) / Refueling valve (RV)
-
Fuel tank isolation valve (FTIV) / Tank pressure control (TPC)
-
EVAP leak detection pump
System Operation
System Diagram
Item
Description
1
Intake manifold
2
EVAP canister purge valve
3
Fresh air hose
4
EVAP leak detection pump
5
EVAP canister
6
Fuel tank
7
Fuel pump and sender unit
8
Fuel tank isolation valve (also known as Tank Pressure Control Valve - TPC )
..
Other information:
NOTE:
The engine running diagnostic mode is a hybrid powertrain
control module strategy which is separate from the normal operating
strategy. The specifics described here are applicable only to the
power-split hybrid variants. When in this mode, the engine is running
and does not turn off, as it does during normal operation. The engine
RPM may be increased to the desired speed as the vehicl..
Removal
WARNING:
The following procedure prescribes critical repair steps
required for correct supplemental restraint system operation during a
crash. Follow all notes and steps carefully. Failure to follow step
instructions may result in incorrect operation of the supplemental
restraint system and increases the risk of serious personal injury or
death in a crash.
NOTE:
Dual ..