How To Test Engine Compression || Jeep Sputtering E09

How to test engine compression and the tools used to do it. The reason for us doing the compression test was, the jeep is running bad and we thought we had replaced all other parts that could be the cause of our symptoms. Look at our jeep playlist for all the things done to this jeep. Tools and parts: Compression Tester Kit (8 Piece Set): https://amzn.to/2IEEOji Milwaukee 18-Volt Drill and Impact Driver Kit: https://amzn.to/2HfipZ5 268-Piece Husky Mechanics Tool Set: https://amzn.to/3kuGUzD A compression test exposes issues of an engine's valves, valve seats, and piston rings. A healthy engine should have over 100 PSI of pressure, but what I look for more is if the cylinders don't have more than 10 psi between them. Here are the symptoms of low compression and why we took a look. 1. Misfires and Sputters The engine sounds like it is missing, hate it when things aren't running on all cylinders. 2. Poor Power and Performance Well, we were really feeling this, sometimes it was hard to keep the jeep moving. Just losing one cylinder would cut our performance by 1/4. 3. Poor Fuel Economy Our gas mileage was way down, getting 10 MPG, and with fuel prices who want to buy more gas with less performance.