my check engine light just popped on yesterday for the first time ever the car still runs good what could it be

160

Asked by Dec 12, 2013 at 11:13 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

how do I know what too check can someone give me a general idea were to look

4 Answers

You DID NOT stop at the first click, but proceeded to "TOP IT OFF"...well this fills up the carbon canister....the evaporative emissions systems no longer has control turning on the check engine light....drive for a month...never filling more than the first click and your problem will go away~

17 out of 17 people think this is helpful.
109,815

Have the codes read. Your local auto parts store will do it for free. Post codes back on here and we will be able to help you more.

7 out of 7 people think this is helpful.

if you did invest in a fourteen dollar OBD-II handheld scanner, it'd show the trouble code for evaporative emissions charcoal canister fault~

4 out of 4 people think this is helpful.
10

the code p04o2

1 out of 1 people think this is helpful.

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