Question about 2004 Jeep Grand Cherokee

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Service engine check yellow light in Dash lit

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You car has a trouble code stored because the computer has detected an emissions or electrical control problem during self testing. DO NOT listen to anyone who says to disconnect the battery!!! Leave the light on and take it to a professional who owns a scantool and can read the code and freeze frame recording data and determine the exact cause. CLEARING THE LIGHT wont fix the problem, and in the case of an intermittant problem like a crankshaft sensor...the early trouble code may indicate an impending failure that can be diagnosed and repaired before total failure. If you clear the code and nobody knows what the code was till it happens again, you can become stranded and require a tow. Codes are not dangerous, they are information for expediting repairs.

Posted on Sep 12, 2009


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