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Unread 11-22-2013, 07:28 PM   #1
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have a 1989 Mercury grand marquis. the other day cruising down the highway going 65 it started misfireing like crazy then lost power, finally stalled, coasted off road and saw nothing but steam from under hood. no warning lights came on. car would crank real slow but not start. went back next day and car cranked normally and started but ran extremely rough, got it off the side of the highway to a wal mart parking lot where it died again. cranks but won't start. let sit there 2 days, went up today, it started, runs rough again. made it a few feet and it stalled, back to just cranking. pulled plugs and all are oil fouled. and the rear 2 are melted. the worst one was drivers rear. WTF?

any ideas what happened. and it pours smoke out exhaust when i crank it..

pic attached of 6 of the 8 plugs.

BTW plugs are only like 3 months old





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Unread 11-22-2013, 10:14 PM   #2
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Blown head gasket?
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Unread 11-22-2013, 10:22 PM   #3
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not sure. thats why i posted this. lol

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Unread 11-22-2013, 11:15 PM   #4
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What color smoke?

Hate to say it man but it sounds to me like your top end has given up, probably cracked head or blown gasket.

Basically a full rebuild in order.
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Unread 11-22-2013, 11:25 PM   #5
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my Girl who took me to retrieve the car off the highway and followed me up the road said it was a smokescreen of brownish smoke when it was running.

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Unread 11-24-2013, 01:13 AM   #6
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Nothing in a car that i'm aware of makes brown smoke when burned.

Blue = oil
White (and sweet smelling) = coolant
Black = too much fuel
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