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I removed the oil cap and there was a lot of pressure coming out on my 2002 Chevy trailblazer ltz 4200 is that a major problem and also is there a PCV valve on this motor

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  • Cars & Trucks Master
  • 2,196 Answers

First, there is a PCV valve, unless someone removed it.
A local car parts store or garage should be able to tell you where it is located.
Second, a lot of pressure ( usually called "blow-by") can be a problem.
Blow-by that is extreme can blow the oil out of your engine whilst you are driving it, and cause motor failure.
I should recommend you deal with the PCV valve first, and be certain the pipes and or hoses are good to it, as this has a lot to do with blow-by.
Other than the PCV system, blow-by can also be caused by worn rings on the pistons or worn valve guides.
God bless your efforts.

Posted on Dec 19, 2016

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Posted on Jan 02, 2017

cadman000
  • 607 Answers

SOURCE: 2002 chevy trailblazer LTZ - where do you fill rear washer fluid?

Uses 1 washer jar up front for both front and rear. Hope this helps

Posted on Apr 22, 2009

  • 17 Answers

SOURCE: 2002 chevy trailblazer. 1.oil pressure gauge

the sensor is on the side of the engine block. there's two thing that monitors oil. a pressure switch turns you oil light on and you oil pressure sensor the operates your gauge, start with your sensor. that is near you oil filter that is where it gets it pressure reading from

Posted on Jul 24, 2009

autotherapis
  • 501 Answers

SOURCE: I have a 2002 Chevy Trailblazer LTZ, Might be a trans problem....

Have it scanned and see if there isn't a trans code. If it is spinning out between gears that is called slippage. There is not much you can do since there are no adjustments. The only thing that it could be other than the trans itself is a problem with the TPS, Throttle Position Sensor, and if that is defective and you don't repair it right away you can do serious damage to the trans. (almost 30 years rebuilding trans and 4 of them directly for GM. I know the 4l60e extremely well) Do not drive this if it is slipping. Hope this helps.

Posted on Aug 17, 2009

Danniboi
  • 1098 Answers

SOURCE: THE OIL PRESSURE GAUGE DROPS TO ZERO AND LIGHTS ON

poor oil circulation may need either more oil or a new oil pump, any other symptoms?

It could just be the pressure sensor, as this is cheaper get it looked at first.

Hope this helps
Regards
Dan

Posted on Feb 01, 2010

  • 22 Answers

SOURCE: I own a 2005 Chevy Trailblazer. My oil pressure

could be the oil pump in the motor.

Posted on May 29, 2010

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