Question about 2001 Dodge Durango
PO442 is the data trouble code for (evaporative emission control system leak detected "small leak") it means that the OBD-II system has detected a small vacuum leak in the evaporative control system.
You will need to find the vacuum leak in the evaporative control system, check for cracked or broken vacuum lines and hoses, especially the vacuum hoses and lines around the evaporative (Evap) canister and the (Evap) solenoid. Also check the gas cap seal for damage.
Vacuum hoses and lines should be checked very well for any cracks or breaks, because they usually hide under the vacuum line or hose.
Posted on May 02, 2010
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Posted on Jan 02, 2017
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