Diesel Compression Test 6.4 Powerstroke Compression Test
A healthy 6.4L should have over 400 PSI. The ones I have performed a manual compression test on had an average of 425 PSI on good cylinders. It may be crude but its a quick way to tell if you have an obvious base engine concern. It's a good test for any model or engine. Just added forscan to the shops tool list! it's been fun learning the program so far and it gives me so much more insight into put Matts compression test 6.7 Powerstroke Manual Compression Test Information / STP DIESEL ...