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Hi folks, the check engine light of my 03 taurus OHV 100k, became on a few days ago, the code reads P0442: "Evaporative Emission System Leak Detected (small leak). "

It still ran fine till this afernoon. I drove it to work in the morning, fine. After work, it cranks but won't start.

Two weeks before this happened, the engine sputtered and almost died during a stop & go, like misfiring or something. I hit the gas hard and eventually got away. Not sure if this is related;)

Tested the sparks, look ok. Swapped the battery with friend's, still the same problem. Gas pump seems to be fine. Now even the transaxle warning light is on with key in ignition. -_-

Any idea what causes the problem? thanks.
 

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Code is frequently related to the gas cap not being tight. Will not keep it from running.

Check fuses and relays.
 
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