TrailBlazer 2002-2009
The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
Platform: GMT 305, 360, & 370.

08 i6 exhaust manifold broke what is the cause

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Old August 16th, 2013, 6:49 PM
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Default 08 i6 exhaust manifold broke what is the cause

I have an 08 inline six trailblazer. 2wd the exhaust manifold is pretty much broke in two about 6 inches before the pipe union.Is this a common failure ?is there a recall?Is my converter stopped up?Is my muffler stopped up?Any help appreciated
Old August 16th, 2013, 8:20 PM
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How many miles on it? Did it rust out? Does it look like it was torn apart? If so check to make sure motor mount are good.
Old August 16th, 2013, 9:00 PM
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yes it common. hopefully none of the studs are broken.
Old August 17th, 2013, 6:35 AM
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it is not rusted out,It has around 60,000 miles on it.It is hard to tell if it is ripped out.looks like a clean break all the way around.
Old August 19th, 2013, 6:42 PM
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Originally Posted by m715
I have an 08 inline six trailblazer. 2wd the exhaust manifold is pretty much broke in two about 6 inches before the pipe union.Is this a common failure ?is there a recall?Is my converter stopped up?Is my muffler stopped up?Any help appreciated
Yes this is unfortunetly a fairly common problem. If you don't have more than 120000 miles on it there is an extended warranty and TSB that was issued . Take it to a chevy dealer and tell them what the issue is . Even Isuzu sent a notice for my Ascender on this issue. Supposed to be covered in full if within the TSB period .

Service Bulletin No.: SC-11150
Component(s): ENGINE AND ENGINE COOLING
NHTSA ID Number: 10040504

All Products Associated with this Service Bulletin

Vehicle MakeModelModel Year(s)

  • CHEVROLETTRAILBLAZER2008-2009
  • GMCENVOY2008-2009


Details

0 Associated Documents

Manufacturer: General Motors LLC
SUMMARY:

GM SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. 2008-2009 TRAILBLAZER/ENVOY. THE VEHICLES MAY DEVELOP A CRACK IN THE EXHAUST MANIFOLD. IT COULD RESULT IN INCREASED EXHAUST NOISE. *RM

Last edited by vipergg22; August 19th, 2013 at 6:56 PM.
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