Question about 2004 GMC Sierra Denali

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Where is the pcv valve on 2004 gmc 6.0 - 2004 GMC Sierra Denali

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

blueextc3221
  • 15935 Answers

SOURCE: PCV valve for 2004 Hona CRV

PCV Valve Operation: 0900823d80049deb.jpgA vacuum-controlled metering device that regulates the flow of crankcase fumes in the positive crankcase ventilation system by allowing more flow at high speed than at low speed, and acts as a system shutoff in case of engine backfire to prevent an explosion in the crankcase.
Depending on your engine size, the PCV is a different style and slightly different location.

Usually they are mounted in a hole on your valve cover.... connected by a vacuum tube.
Some are mounted with threads into the engine block (usually by the oil filter)

On the '04 Crv - it is nearly inaccessible behind the AC compressor and beneath what looks like an old vacuum advance. Most PCV valves today do not need to be replaced, unless there is actual valve failure, which I have not seen happen. I would not be concerned about replacing it.

Thanks for using FixYa - a FixYa rating is appreciated!!

Posted on Feb 21, 2009

TDISLine
  • 1874 Answers

SOURCE: How difficult is it to change the PCV valve. 2004

PCV is an acronym for positive crankcase ventilation.
The PCV Valve is a very common replacement item on many engines today. It's called the PCV valve for short but it stands for Positive Crankcase Ventilation. When your engine spins it many times collects pressure in the crankcase area, and it has to escape to relieve pressure on the motors bearings and seals. The PCV valve and PCV system is typically located near the intake manifold, and many times comes right off of the valve cover. It is very simple to replace the PCV valve, and you can do so by simply unscrewing it, and screwing in the new valve. We recommend using a little bit of teflon tape or paste to make sure you do not get any oil leaks.
Example (see picture below): 2,4 ltr. Audi V6 engine (BDV, AMM)
b0e80b6.png It's not difficult to replace PCV valve!

Posted on Sep 24, 2009

  • 400 Answers

SOURCE: How do I replace the PCV valve on my 2004 Chevy

It isn't servicable. It is part of the front valve cover. It never needs to the serviced or replaced. Just make sure you change your oil when you are supposed to. Parts stores will sell you one for the older style valve covers. If you really wanted one you could put an old sytle left side valve cover on the car so you could replace it when you feel you need to. (The valve cover in front of the car is the left one.)

Posted on Oct 11, 2009

co7196
  • 3433 Answers

SOURCE: 2004 Mazda MPV vacuum line from pcv valve and

You have the wrong type hose on the pcv valvle. It isn't vacuum hose.

Posted on Nov 12, 2009

Testimonial: "thank you you have been very helpful i understand now but the hose that is on the new pcv valve is a vacuum hose "

  • 97 Answers

SOURCE: Location of PCV Valve in GMC Savana 2007

look at both valve covers its got to be around there.thanks

Posted on Nov 29, 2009

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