This reduces compression in the cylinders and you don't get as big a bang for your buck, so your vehicle loses power. Piston rings can be replaced, but it's an expensive job. Before you ...

THE COMPRESSION GAUGE. This gauge is designed to indicate the individual pumping ability of each cylinder of an engine at cranking speed. Consequently, to get a meaningful reading, intake flow ...

Some engines use a spark to ignite their fuel, and others rely on compression. What does all of that mean? And how do the two ...

By definition, the compression ratio (CR) is the total swept volume of the cylinder with the piston at bottom dead center (BDC), divided by the total compressed ...

Fixed-compression-ratio 2.0-liter turbocharged four-cylinder engines, which have become the go-to powerplants across wide swaths of today’s automotive landscape, generally have a compression ...

We recently covered how Nissan scored an acknowledgment from J.D. Power in the 2025 US Initial Quality Survey, with the maker ...

If your cylinders check out at 7 percent or less, then you're okay. With such a cylinder, let the compression gauge go 8 pumps and use that as a reading to determine your cam/compression ...

Our top recommendation for a basic engine compression tester is this simple kit from INNOVA. While the INNOVA 3612 is a basic set, it contains all you’ll need to easily check your engine’s ...

Cranking compression is the pressure, measured in pounds per square inch (PSI) that builds inside your cylinders when the valves are closed and the piston moves up the bores to compress the ...

Nissan is recalling nearly 443,900 vehicles across certain models under its brand and the Infiniti brand in the U.S. over a ...