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Author Topic: PCV Valve Location On 5.3  (Read 30639 times)

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wayno

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PCV Valve Location On 5.3
« on: 02/23/03 10:21 PM »

All,

Good Morning.  Last week, I was grazing through the topics in these forums and I ran across several that talked about excessive oil consumption due to bad PCV valves.  As luck would have it, I was driving to work the very next day and "bingo", my oil level warning light flashes.
Can someone tell me..."is the PCV valve located in the usual place on top of the valve cover"?  I just want to be sure before I start poking around in there.

Thanks,

Wayno
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Big_Don

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PCV Valve Location On 5.3
« Reply #1 on: 02/23/03 11:59 PM »

The PCV Valve is on the driver's side of the engine, but I think it goes directly in the head, not the valve cover - don't remember exactly.  The tricky part is that the PCV hose has a foam-rubber cover over it so it is about double the diameter of the hose that you would expect to find.
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wayno

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PCV Valve Location On 5.3
« Reply #2 on: 02/24/03 01:15 AM »

Thanks Don.  I knew it wasn't as straight forward as I thought (or hoped).

Wayne
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2002 green Z71 with tan leather

02_2500avalanche

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PCV Valve Location On 5.3
« Reply #3 on: 02/26/03 11:51 AM »

The PCV valve goes into the the top left hand corner of the valve cover on the drivers side.

Alex
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wayno

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PCV Valve Location On 5.3
« Reply #4 on: 02/26/03 09:56 PM »

Thanks Alex.  I found it.  Interesting...I called Colonial Chevrolet here in Acton, MA to set up an appointment for an alignment.  I mentioned the oil level issue and the service manager was all over it.  He told me about the TSB and that they would take care of it with no problem.  He said they're replacing the floating valve style PCV valve with a "fixed orafice style" valve.  He said merely replacing the current one with an aftermarket floating valve style may not fix the issue.  
I've been rebuilding chevy engines for many years, so I didn't "just fall off the turnip truck" when discussions like this take place.  Although I'm also a believer that when you have a warranty, use it.  I've had great luck with this service group.  They've never tried to sell me a "story"...

We'll see....

Wayno
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LORD VADER

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PCV Valve Location On 5.3
« Reply #5 on: 03/30/02 04:08 AM »

WHERE IS THE PCV VALVE LOCATED SO I CAN CHANGE IT WITH MY OIL EVERY 10K?
« Last Edit: 03/30/02 07:26 AM by lordvader »
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mike56BA

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PCV Valve Location On 5.3
« Reply #6 on: 03/30/02 09:28 AM »

It's at the back of the drivers side valve cover.
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gandolphxx

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PCV Valve Location On 5.3
« Reply #7 on: 03/30/02 11:57 AM »

You may want to consider that 10K number - may be a little long depending on driving conditions. :)
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LORD VADER

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PCV Valve Location On 5.3
« Reply #8 on: 03/30/02 12:30 PM »

Thanks for your help, found location and replaced.

2002 Z-71 loaded

21086 miles
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2002 Chevy Avalanche Z71 Summit White - Oct 2001

LORD VADER

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PCV Valve Location On 5.3
« Reply #9 on: 03/30/02 07:39 AM »

Where is the PCV valve located and what is the new type for my 2002 AV and where can I get it.
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Tanc Crusher

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PCV Valve Location On 5.3
« Reply #10 on: 03/30/02 09:29 AM »

PCV valves are being changed mostly because of oil comsuption. If this is your problem, take it your local Chevy Service Dept and they will change it out for free. There is a bullentin some where on this problem.
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shafman1

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PCV Valve Location On 5.3
« Reply #11 on: 03/31/02 05:58 AM »

I haven't looked, but there ought to be a vacuum hose probably 3/8" or so going to it.  Follow the hoses going to the valve covers.  Sometimes they're mounted inside a rubber grommet on the valve cover.  Either way, they will have a hose that draws vacuum from the manifold so it shouldn't be too hard to find.  Hope this helps a little.  I'd go outside and look, but it's raining and I don't feel like going out to the garage.   ::)
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turpincl

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PCV Valve Location On 5.3
« Reply #12 on: 07/27/03 07:01 AM »

Stupid Question:

Where is the PCV?  I have looked and I cant locate it.  I tried to use the search feature for PCV, but it returns no results. (I dont believe it).

Any help is appreciated. A picture would be great!!
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turpincl

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PCV Valve Location On 5.3
« Reply #13 on: 07/27/03 09:05 AM »

Thanks!!  That was just what I needed. ;D


I felt like I was:  :E:
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