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2006 Chevy Trailblazer Leakage on #6 cylinder

Tiny
RALENE
  • MEMBER
  • 2006 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 77,060 MILES
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?
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Sunday, December 20th, 2009 AT 7:59 AM

1 Reply

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Actually it dosent, very common on 02-06 trailblazers, the intake and exhaust valves build up carbon on the valve guides causing the valve to stick and a missfire. GM came out with a redesigned head for these vehicles. It dosent matter if the vehicle was maintaned or not this still would have happened, it a design flaw that there correcting.
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Monday, December 21st, 2009 AT 2:05 PM

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