Compression

[some-fool Lurker Find all posts View Profile Close some-fool]

Hey just wondering ... Have a 2.7 litre 90 series Prado and its been running rough and seemed to be running on 3 cylinders so took it to Toyota who did a compression test and they said its got 40 to 50% compression on 3 cylinders but it dosnt blow any smoke at all so wondering if it would be valves rather then rings or both .. No smoke makes me think can't be rings or am I wrong