Chrysler 300M 2002 Service Manual page 2606

P0442-EVAP SYSTEM MEDIUM LEAK —
TEST
1 NOTE: Since a hot vehicle can conceal a leak, it is best to perform this test
at room temperature.
NOTE: A loose gas cap could have caused this DTC to set. Make sure gas cap
is tight and in good condition. Ensure the gas cap meets OEM specifications.
Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
No
2 Perform a visual and physical inspection of the entire Evaporative Emission system.
Check for the follow conditions:
- Holes or cracks
- Loose seal points
- Evidence of damaged components
- Incorrect routing of hoses and tubes
- Fuel Cap gasket seal
Were any of the above conditions found?
Yes → Repair as necessary.
No
ACTION
→ Go To 6
Perform POWERTRAIN VERIFICATION TEST VER - 6.
→ Go To 3
DRIVEABILITY - NGC
Continued
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APPLICABILITY
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All