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burning oil
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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    2008 trailblazer 4.2 vortec burning oil I’ve been noticing a quick puff of blue smoke out the tailpipe when first started, goes away immediately Anybody know if there’s a common problem with Chevy Trailblazers for burning oil on start up? Has 70,000 miles- so fairly low, I’ve changed the...
  2. General
    Hey there new to the site. If anyone could give me some input I'd greatly appreciate it. I've had some problems lately I believe can be attributed to a dirty throttle body. Poor gas mileage, poor idle when engine is cold. Even had a few codes a while back (they disappeared later that day) that...
  3. OEM Issues
    I've got a 2004 Trailblazer EXT with the 4.2 that's going through 3-4 quarts every 5000 miles. Having read some 3+ year old posts on the subject on the forum, I'm still trying to figure out what's wrong. Unlike the where's my oil going posts I've read, none of them quite have a spastic oil...
  4. OEM Issues
    This is a long story so I'll leave out the "why i did it" and give the facts. Bought the 4.2l evnoy used with 85k miles. It ran ok but used oil. Found out #2 cylinder was using the oil. Finally I burned a #2 exhaust valve. I changed the valve. About 5000 miles later, I burned the adjacent...
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