An engine compression test kit consists of a pressure gauge and an assortment of hoses and fittings so that the gauge can be connected to the spark plug holes on each of an engine's cylinders. To ...

A compression test is to determine how much pressure the engine makes, and a leakdown test measures its ability to hold pressure.

While an engine compression tester may not be the most common tool in a mechanic's garage, they can be very useful, especially for older cars.

With a simple diesel engine compression test, it is possible to spot compression problems before they get worse. Here’s information on these tests and how to decide if it is time to perform one.

We take a close look at what engine compression means, what it does, and how to test it.

Is your engine underperforming? Our expert shares how a diesel engine compression test could provide the diagnosis.

That statement remains valid. While acceptance of the combined loading compression test method has grown steadily — it is now the dominant one — use of the other two has risen and then subsided ...

Defining and understanding compression for your pump gas street motor- Engine Masters ...