Checking compressions

[TheGreatDustino]

Is there any way to listen for compression? Or maybe feel them?

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[jeep-N-montero]

No.

 

[Eaglefreek]

If you can get your finger over the spark plug hole with the spark plug removed you can feel if there is compression. However, you can't measure it. A compression tester is fairly cheap and at least in the US, you can use teh tool loaner program at a major auto parts chain to "rent" one. However, you don't mention which vehicle you have and some engines have difficult access to the spark plugs.

 

[gandrimp]

You can listen for 1 or 2 cylinders that are weak on compression. On a weak cylinder (low compression) the engine will turn faster while turning the engine over with the starter.