A question, having never heard exactly what nailing sounds like: Is it a very different sound from a sticking lifter? When I think of "nails," I think of the tickey-tappy sound that the lifter makes, but I would have to imagine the mechanical issue it involves would make a different sound. My car has one or two sticking lifters, apparantly ... when I first noticed the tapping, I was worried it might be the dreaded "nailing" ... took it to my indy and he said it was surely a lifter or two. Just curious how the actual sound of nailing compares to the tick sound.

__________________
1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)