Found 40% leakage on #6 cylinder, was told the valves leaking at valve seats, recommend replacing head. Doesn't this sound a bit excessive for a 2006 model with less than a 100,000 miles? I am in contact with GM as a defective motor and/or part. This car is not raced, driven carefully by one person. What do you think? Have you heard of many Trailblazers with the same or similar problem?
Dec 19, 2009 at 11:59 PM
