Technician A says that low compression on a single cylinder will cause an engine not to start. Technician B says that low compression on a single cylinder means that the engine can be fixed with a tune-up. Who is correct?

Tech A

Tech B

Both A and B

Neither A nor B

Technician B

Explanation:

Car engine compression refers to when air and gas are mixed together in the cylinders of an engine. This process is required for the car to move and function. If there are any problems with the compression process, then you can expect to experience all kinds of car problems.

It will be easy to tell when you have a low compression problem because you may experience a misfire when you try to start the engine. Either that or the engine will offer poor performance as you're driving the vehicle down the road. The worst-case scenario would be the car not starting if all the cylinders have no compression.

Generally speaking, if you have low compression in one (single) cylinder, the engine will start but you'll likely experience misfires and your vehicle will run rough. If you experience no compression in ALL cylinders, your engine simply won't start. This rule out A statement.

An engine tune-up is a exercise for engines to undergo regularly. It is a way of making a car's work at the level and standard intended by the car manufacturer when the car was first made. All manufacturers will stipulate a schedule of when a car will required an engine tune-up to ensure that a car runs at it's most efficient

Engine tune-up are imperative to ensure that all the power and efficiency that your car is capable are being reached. This bring the answer to the question to Tech B.