Check Engine light is on. Some days it does not go on. What should I check? on 2001 Ford Crown Victoria

It does not stay on all the time. Some days it does nt go on.

by in Hallandale, FL on October 17, 2012
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1 answer
ANSWER by , November 27, 2012
If its on, read the code. That will help. Even if it goes off, it is still stored for some time.