Piston Slap. A very serious problem but it sounded so funny when the guy explained it and probably because it was my friends car. I would never in my life buy a GM vehicle.

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1985 300sd Burgandy - Palomino. This ones a keeper.
1986 Isuzu Trooper II Turbo Diesel 5 Speed Red/Grey.
1995 Mustang GT 5.0 5 Speed Black/Gold.
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1985 300sd Silver - Blue/Grey Custom. Sold!
1984 300sd Green - Black/Green MB Tex. Sold!
1991 Volkswagen Jetta ECOdiesel 5 Speed White/Grey. Sold!
1995 F150 5.0 Auto Green/Gray. Sold!