Having problems with your 1996 Mercury Grand Marquis ?
1996 idle is high and the check eng. light comes on. it will go out maybe a day later and be find for a day or two and do it again
I would take your car to autozone and have then scan the computer for trouble codes, they do this procedure for free, once you know the trouble code you can begin to diagnose the problem alot more accuratly.....
Repair Help & Product Troubleshooting for 1996 Mercury Grand Marquis
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