Dodge ZB 2005 Service Manual page 1232

P0441-EVAP PURGE FLOW MONITOR —
TEST
3 Visually inspect the Evap purge hose that goes from the Purge Solenoid to the Evap
Canister. Look for any physical damage such as a pinched, plugged, ripped or dry
rotted hose.
Were any problems found?
Yes → Repair or replace hose as necessary.
No
4 Visually inspect the Evap Purge hose that goes between the Evap canister and the
fuel tank. Look for any physical damage such as a pinched, plugged, ripped or dry
rotted hose.
Were any problems found?
Yes → Repair or replace hose as necessary.
No
5 Carefully inspect the Evap Purge Solenoid vacuum supply hose for proper routing.
Also check for a pinched or plugged hose from the throttle body to the Purge Solenoid.
Inspect the vacuum nipple at the throttle body for any damage or plugging.
Make sure vacuum fitting at the purge solenoid is not over installed.
Is the vacuum supply hose and throttle body vacuum nipple free from defects?
Yes → Go To 6
No
6 Note: After disconnecting the Evap Purge Solenoid vacuum connections,
inspect the lines and solenoid for any signs of contamination from the EVAP
Canister. This may indicate a faulty rollover valve. Replace purge solenoid
if contamination is found
Disconnect the vacuum hoses at the EVAP Purge Solenoid.
Using a hand vacuum pump, apply 10 inches of vacuum to the Evap Purge Solenoid
vacuum source port. (component side)
Does the Evap Purge Solenoid hold vacuum?
Yes → Go To 7
No
7 Using a hand vacuum pump, apply 10 inches of vacuum to the Evap Purge Solenoid
vacuum source port. (component side)
Ignition on, engine not running.
With the DRBIII , actuate the EVAP Purge Solenoid and observe the vacuum gauge.
Does the vacuum drop when the solenoid is actuated?
Yes → Refer to the INTERMITTENT CONDTION Symptom (Diagnostic
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Go To 4
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Go To 5
→ Repair the vacuum supply hose/tube as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Replace the Evap Purge Solenoid and the Evap Canister and
clean out Evap lines as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Replace the Evap Purge Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - GAS
Continued
111
APPLICABILITY
All
All
All
All
All