how to pass the emission test for grand marquis

Asked by Nov 05, 2015 at 11:59 AM about the 2008 Mercury Grand Marquis

Question type: Maintenance & Repair

My car will not pass test. It will not give a reading for the machine.What can I do? I can't get my tags from DMV

3 Answers

16,175

Need more information, do you have a copy of the emission test stating what failed? Is the car stock, or has it been modified? High mileage?

1 out of 1 people think this is helpful.
34,075

Without more information I can give you some general guidance. Do a tune up and check to see if the catalytic converter is in good shape. A new cat can work wonders when trying to pass a smog check.

1 out of 1 people think this is helpful.
56,575

Is it failing because the readiness monitors are not set? Or won't the car communicate with DMV's equipment? Either way, visit your local auto parts store and have them scan the computer. Most stores will do it for free. Let us know what they tell you. HTH. -Jim

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