1991 1999 ford explorer chilton User Manual

Evaporative canister and hose routing on the 2.3L and 2.1L engine
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HOW TO USE THIS BOOK
COMPONENT TESTING 517 

Evaporative canister and hose routing on the 3.0L engine-2.4L engine similar
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518 COMPONENT TESTING 

Evaporative canister and hose routing on the 4.0L engine
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COMPONENT TESTING 519 

EVAP canister mounting for the 1.0L engine
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520 COMPONENT TESTING 

Fuel vapor management valve mounting-1.0L engine shown, others similar
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COMPONENT TESTING 521 

EVAP hose routing on the 1.0L engine
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Fuel Vapor Canister
Generally, the only testing done to the vapor canister is a visual inspection. Look the canister over and replace
it with a new one if there is any evidence of cracks or other damage.
Do not try to check the fuel saturation of the canister by weighing it or by the intensity of the fuel odor
from the canister. These methods are unreliable and inhaling gasoline fumes can be toxic.
CANP Solenoid
1441-1444 MODELS
Remove the CANP...

If the solenoid does not allow air to pass freely while energized, replace the solenoid with a
new one.
2. 
1441-44 MODELS Remove the CANP solenoid.
1. 
Measure the resistance between the two CANP terminals. If the resistance is between 30-40 ohms, proceed to the Step 3.
1. 
If the resistance is not between 30-40 ohms, replace the CANP solenoid.
2. 
2. 
Attach a hand-held vacuum pump to the intake manifold vacuum side of the CANP solenoid, then
apply 16 in. Hg (13 kPa) of vacuum to the solenoid. If the...

Install the CANP solenoid, then attach the engine wiring harness connector to the solenoid.
4. 
Connect the vapor hoses to the solenoid.
5. 
Pressure/Vacuum Relief Fuel Tank Filler Cap Unscrew the fuel filler cap. The cap has a pre-vent feature that allows the tank to vent for the first  3
/4
turn before unthreading.
1. 
Remove the screw retaining the fuel cap tether and remove the fuel cap.
2. 
To install: Position the end of the tether against its mounting boss, then install and tighten the tether...

Typical EGR system schematic
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COMPONENT TESTING HOW TO USE THIS BOOK
OPERATION 525 

Exploded view of the EGR system and related components for the 2.3L and 2.5L engine
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526 COMPONENT TESTING