Hagerty Media reader AG1962 writes: Hi Sajeev, My family all have graduate degrees and do research for fun (yes, it is a ...

(I would like to thank everyone who emailed pistonslap@hagerty.com after our last installment, helping refill the coffers ...

Piston slap is a problem that plagues many engines. One of the most difficult aspects of designing to eliminate piston slap is that slight differences in operating conditions and in part geometries ...

The issue of “piston slap” is finally getting some action in court this week. The defect occurred in some GM GenIII V8s built between 1999-2002 and causes a ticking or knocking sound (usually during ...

A:Offsetting the pin is done not for engine longevity, but to reduce audible "piston slap" on cold start-up. The pin is offset towards the piston's major thrust face—that is, the side of the piston ...

Q I have a 2006 Honda Accord four-cylinder with 105,000 miles. It has developed a clicking engine noise on a cold start. After the car has warmed up, the sound goes away. I have seen references to a ...

Q: I have a 2003 Pontiac Vibe, which is basically a Toyota Matrix, with 135,000 miles on it. This past winter, on a cold start it would knock for a minute or three, depending on how cold. A friend who ...