Question about 2002 Chevrolet TrailBlazer

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I have a 2002 Chevy Trailblazer and need to know how to go about replaceing the valve cover gasket.The engine is the inline 6.

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Intake must be removed on these 4.2L I6 to access the RH side valve cover bolts. Hopefully this helps

Posted on Jul 16, 2009

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Posted on Jan 02, 2017

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SOURCE: valve cover gasket replace on a subaru svx

ALL DATA time to R&R valve cover gaskets both sides is 2.1 hours. you will need to remove brackets and connectors on either side, It will also help to take the upper plenium bolts out but not completly pull the plenium. If you don't have a lot of mechanical experiance and some basic tools. you may want to consider to have a local a shop to perform this service for you after you get a estimate. RON.

Posted on Jan 18, 2009

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SOURCE: 2002 Chevy Trailblazer Engine Codes

This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.

Posted on Aug 16, 2008

  • 109 Answers

SOURCE: replace valve cover gaskets on subaru svx

I don't have experience with this engine but guess you won't have to remove it for valve cover gasket work but perhaps can lift it a bit [not by hand!] after loosening engine mounts.

Posted on Nov 18, 2008

  • 140 Answers

SOURCE: need to know how to remove cover to replace lamp

you dont remove the front cover, open the hood look behind the headlight and turn the bulb couter clockwise, and replace the bulb in the headlight.. good luck keith...

Posted on Mar 21, 2009

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SOURCE: how to replace valve cover gasket 1998 chevy malibu

The first step is to remove all the parts that are in the way of you being able to remove the valve covers. (Ex.: air intake, loose wires etc.) Then you will need to remove your valve covers (using basic tools) and be very careful to not let anything get on your lifters, which your valve covers protect. Once you have the valve covers off compare the new gaskets to make sure they are the right size. Then remove the old gasket and replace with the new one using a high temp gasket sealant (available at any auto parts store) to attach the gasket to the valve covers. Then tighten down snug and check for leaks after replaced. 

Posted on May 06, 2009

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