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1993 mercury grand marq

hannincambridge's Avatar
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12-04-02, 06:50 PM   #1  
1993 mercury grand marq

check engine light comes on after driving the car for 10 to 20 minutes. what could be the problem. engine size is v8

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bejay's Avatar

Join Date: Dec 2001
Posts: 2,538

12-04-02, 07:11 PM   #2  
well first you need to have codes read if you have a local autozone sometimes they are able to do it for you.
just guessing most likely a o2 sensor or clogged egr passageway is the most common reason for the light to come on for this model but wont no for sure until you have your codes read.

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