Want to know how healthy or unhealthy your engine really is? Get yourself a compression tester and find out. Despite how complex many modern vehicles are, you can do many common repair and maintenance ...

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 compression ...

If the cylinder heads are on the engine, you will need to add air pressure to the cylinder to hold the valves in place. Our example is the Craftsman 47089 compression test kit using the 14mm long ...