Q. You have written about the diesel-type noise found in gasoline engines called piston slap but I don’t recall you writing about the cause. Also, would a certain type of oil help this condition? D.S.

I have a 2003 Pontiac Vibe with 135,000 miles on it. This past winter it would knock for a minute or so on a cold start. A GM tech told me that it has a cold piston slap and it will go for a long time ...

Question: I have a 2001 Chevrolet Lumina with 48,000 miles on it, and a 3.1-liter V-6 engine. When the engine is cold, I can hear a knock, which sounds like a rod. When the engine warms up, the knock ...

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 ...

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 ...

QUESTION: 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 ...

A man in New Zealand has won a NZ$47,995 (US$31,653) refund after a tribunal concluded the 2015 Holden Commodore VF2 SS-V Redline purchased by the man had a worrying noise coming from the engine. The ...

Q: I have a 2003 Pontiac Vibe with 135,000 miles on it. This past winter it would knock for a minute or so on a cold start. A GM tech told me that it has a cold piston slap and it will go for a long ...