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:
Item
Description
1
Driver side register
2
In-vehicle temperature & humidity sensor
3
Driver side register air discharge temperature sensor
4
Center registers
5
Passenger side register
6
HVAC control module
7
Driver side footwell air discharge temperature sensor
Item
Description
1
Climate control housing
..
Special Tool(s) /
General Equipment
412-001
(T71P-19703-B)
Remover, Compressor Pulley
Activation
Remove the A/C compressor. Refer to Air Conditioning A/C Compressor procedure in Group 412.
NOTE:
If equipped with spring rubber clutch.
Using the universal clutch holding tool, hold the clutch and remove the A/C clutch disc and hub bolt.
For fixed c..