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2000 Mercury Cougar Question: Check engine light is on

 

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npennie66, 2.5L V6, Cullen, VA, February 08, 2010, 08:50
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I have been told this could be a "tube" stoped up in the motor. Has anyone had this problem before? The codes are T0420-CAT and t0401 EXTT or EXH GAS

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