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2004 mazda 6 3.0L pcv valve replace - Cars & Trucks

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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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

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  • 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

  • 1 Answer

SOURCE: PCV valve for 2004 Hona CRV

poor advice on not replacing the PCV valve. Dirty throttle bodies, dirty oil re-introduced back into the crank case and less efficient valves are all serious concerns, particularly if the oil isn't changed regularly.

I wouldn't go over 60K without replacling it

Posted on Oct 21, 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 "

Boole5555
  • 160 Answers

SOURCE: how to replace 2004 mazda 6 pcv hose - v6 engine

Remove the hose from the PVC,
If the hose is stuck, try turning it in place with a set of pliers.
Sometimes a Flathead screwdriver can be used to pry it off, but can be dangerous and/or rip the end, of said hose.
However, if you are replacing it anyway, you could cut it off.
Remember to save a segment of hose for sizing.

Posted on Jan 05, 2010

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Where is the pcv valve located


The PVC is located on the Top of the Valve Cover and has a Rubber Hose going to it and normally.

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Engine light came on smell gas fumes see no leakes its a 2003 dodge grandcaravan


My 2004 Mazda 6 had a similar problem. It smelled like gas inside the car and had code # P0456. I found that the PCV line was pinched. The line was not an Original Equipment. I replaced the line and the PCV valve. So far so good...

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How to replace PCV Valve 2004 Mazda 6s V6 3L


Step 1: Identify PCV and remove connectors for space:
If you look at the back of the engine, there is a 5/8" tube running into the intake manifold. In picture #1, you'll see that this tube has a green sticker on it (red box #3). You can't see the PCV valve from this angle, but if you follow that tube down, you'll see a gray plastic piece. That is the PCV valve.



For step 1, we remove the 2 hoses and an electrical connectors (red boxes 1, 2, and 3). That will give us more clearance.



wol_error.gifThis image has been resized. Click this bar to view the full image.pcv_01.jpg



Step 2: Remove the tubes to get to the PCV valves.
Right, now you need to remove the 5/8" tube completely (the one with the green sticker). Picture #2 you can see that there are some hose-grips on that tubes, so using small pliers will help here.


wol_error.gifThis image has been resized. Click this bar to view the full image.pcv_02.jpg



After that, there is another adapter connected to that piece. Please see picture #3 and #4 for reference. That adapter must be remove because it spins freely. To remove, use your hand (no tools needed). Press the green adapter to release the grip and pull up.


wol_error.gifThis image has been resized. Click this bar to view the full image.pcv_03.jpg



wol_error.gifThis image has been resized. Click this bar to view the full image.pcv_04.jpg



Step 3: Remove PCV valve
You can see the full assembly in picture #3 and #4. Next is to remove the PCV valve. There is a shallow thread on that PCV valve, so you'll need to turn it to remove it. Use something to help you, like a clamp or pliers and rotate the PCV valve 1/4 turn counter-clockwise. This will be kind of difficult, but just keep working on it and it will loosen and pop out. A long reach nose-pliers can come in handy. In picture #5, you can see how tight it is down there.



wol_error.gifThis image has been resized. Click this bar to view the full image.pcv_05.jpg



Step 4: Replace and reconnect.
Replace the old PCV valve with the new one. Reconnect all the other hoses and connectors. Start engine and check for leaks. That's it.

hope this helps good luck!

Sep 06, 2011 | 2004 Mazda 6

2 Answers

Gas smell inside the car. Also code # P0456 on the


thats a evap code check your gas filler pipe for rusty or got hole in it

Feb 26, 2011 | 2001 Subaru Outback

1 Answer

2004 Mazda MPV vacuum line from pcv valve and


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

Nov 12, 2009 | 2004 Mazda MPV

2 Answers

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!

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My 2004 Mazda 6 Sport Wagon starts with a cloud of white smoke. It burns oil like there is no tomorrow and the dealership tells me I need a new engine because this one's dead (66,000 km). They want $2200...


It is too much. The cost is high since it is at dealer. Go to an independent shop it will cost about $2400 with an old engine (50K miles) plus labor (labor costs around $750) with one year warranty.

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Check your PCV hose, it may have a hole in it or may be completly sucked in. Or you could need new coils and spark plugs. Or your EGR valve is bad.

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How replace a PCV valve for a 2004 Mazda MPV

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