Please. Me an the wife both like alot about the 3.9L LS's and we wanted to talk to some people who own one and learn more about them and if they're problematic at all. So far the most common problems I'm seeing are bad coils and leaky valve cover gaskets and seals. Is there anything else I need to know about? I've heard about check engine lights and valvetrain ticking noises is this true?
TIA!
Hummer
TIA!
Hummer