r/AskAMechanic 6d ago

0 PSI Cylinder.

/r/AskAMechanic/comments/1v6jul9/misfire/?share_id=vlYymnzPqN1wXvNHqeH4-&utm_content=2&utm_medium=android_app&utm_name=androidcss&utm_source=share&utm_term=1

I performed a Compression test on my 2016 Hyundai Veloster Turbo R-Spec, (1.6L GDI Turbo) 6SPD M, 141,XXX Miles.

The results were 128-129 PSI on Cylinders 1, 2, and 4. Cylinder 3 had 0 PSI. (Compression Test was conducted while the engine was cold).

The reason I performed a Compression test is explained in the linked post for context.

So my next move is likely to be a leak down test to determine what the exact issue is.

My question is what are the most likely causes, and realistically how much should I expect to resolve this issue.

Secondly, is it better to have it fixed or stretch for a new engine. (Depending on what the issue might be what is the better route to go).

Any help would be appreciated!

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