Question about 2001 Volvo C70

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Check engine light came on but car is running perfectly???????

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Chances are the light is in response to an oxygen sensor or other problem which can effect emissions or fuel consumption, but is not obvious in vehicle performance. The only way to positively identify the fault is to have a mechanic run a scan.
BillB

Posted on Feb 08, 2010

Testimonial: "Thank you. Less worried about driving it to the dealership now."

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I suggest scaning for find FAULT CODES, this warning light is one advice about one malfunction.

Tell us what code is present.

Good luck.

Posted on Feb 08, 2010

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