My 95 is at 240,000 and the idle sticks too when cold. Yesterday it was 30 degrees when I started it. It ran at 2000 rpm for a mile or two. It just started doing this in the last couple of weeks and only when its cold.

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2009 E320 Bluetec 117,000
1995 E300D 306,000 Sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000 Sold
2016 Ford Fusion 24,900