If you notice oil consumption..or whistling..or lean codes..

What engine? Some fail more than others. Especially M62 or Aj133 5.0/3.0.

 

It's the Jag engine 4.4L V8, 2007 Range Rover full size L322, 316,000 miles.

 

They rarely fail. On my two high mileage Jag trucks they were fine. One to 200k miles the other to 150k miles. My 06 Jag with high mileage actually did need a PCV valve due to lean codes.

 

Sounds good. Thank you for the good info. I've read in forums that they change them every 3 years or 30,000 miles. I think I'll go ahead and change mine , due to high mileage. Its not expensive and easy to replace.

 

PCV valves should be changed every 30,000 miles. You can’t trust the engine to tell you when. By the time it can tell you, you are damaging engine gaskets. Valve cover gaskets are the first to fail. Be careful when you order the PCV valve you order the EXACT part number. The LR133579 is for the V6. The one that ends in 80 will not work on the v6. There’s a guy who did a write up on this site and he didn’t fix his v6 because he used the 80 PCV valve. He threw in the towel and they found his valve cover gasket leaking. The giant tears people are discovering in their PCV valves didn’t happen over night. They fail much sooner than the engine lets you know, sometimes. Attached is a picture of how differnt the valves are. The 80 is on the left, it’s taller and it’s hard to see but the outer edge is wider and flatter. Change them every 30k. They are easy to do and it will extend the life of your engine gaskets.

 

The L322 doesn't use the 3.0 V6 SC motor but in any case, the 3.0 V6 SC and the 5.0 V8 SC use the same part. The only difference is the V6 only has one PCV and the V8 has two.

 

LR133579 is the part number that the local dealer sold me for a 2012 5.0l SC. It looked identical to the one I removed but I didn't inspect that closely.

 

Do you by any chance know the full part number of the part ending in -80?

 

LR010780
Some sellers KNOW this part does NOT work on the V6 models and others think they are all the same. I am sorry I didn’t include a picture of the spring. The spring is the most import part. The spring is what is going to move with the pull of the engine. Putting ANYTHING other than what is SPECIFIED for your vehicle into your rover is not a good idea. You can NOT buy the spring from Range Rover. The mechanics there have been told to use the spring that the engine comes with now. These kits online that are generic come with the V8 spring only. The large spring in a V6 can cause undue pressure in the engine. It creates a seize of sorts in the engine over a very very long time. I go into things pretty deeply and heavily, especially if I’m going to play around with cheap Chinese generic goods. 2 PCVs for $13.99 from eBay looked delightful, especially since for me, they are a regular maintainance item (every 30k miles). I bought multiples from multiple sellers. Some are harder than others. The rubbers differ in strengths and pliability. There is no across the board quality control, and ALL have the v8 spring. The one from Atlantic British IS one you can trust because it has the shorter spring and to me that EXPLAINS why it works in both motors. The spring is 2/3 the length of what is sold for the V8.
Again, Land Rover gave up selling the springs for a reason. Dim mechanics would probably reach for the wrong PCV while distracted and put it in the wrong vehicle, so they eliminated the sale of the springs completely. The mechanics have been told to use the spring that is inside the engine. And hopefully measure the ones on the V6.
This is a very important part of a proper functioning engine. Thinking that having a torn one in there until the check engine light comes on is terrible. Oh, but your Indy mechanic with the big smile will love it!

 

And hey, if you’re facing a valve cover gasket problem, it’s not all bad. Be sure to get your mechanic to replace all the crappy plastic coolant lines with these pipes and you’ll save yourself a whole lot of future problems. These pipes pretty much eliminate a LOT of expensive coolant leaks and vacuum leaks. You’ll save yourself $$$$$. And you’ll have a WAY superior rover.

 

LR010780 is the part number for the complete right hand cam cover which includes the PCV. I see that Amazon lists the PCV with that part number which is incorrect. Maybe because it is aftermarket and its a big red flag to me and I wouldn't touch them. As far as I can make out, there has only been one part number for the PCV on the V6 and V8 which is LR133579. On early versions of Microcat they are not even listed as a separate part but I guess that changed when they started failing and needed to be replaced without having to buy a complete cam cover.

Regarding the aluminium crossover pipes, the rear crossover pipe shown in the image is for the V6 Supercharged. As far as I know they havent started making them for the V8. All of the 5.0 Supercharge Range Rovers that I have owned, already had aluminium crossover pipes on the front of the engine as standard.

 

if the OP is asking for a 2007 jag 4.4, wouldn't the part number be LR003380 ? both end in -80 which may add confusion

this is an older post, so maybe i missed the change to 2010-2012?

I have the same issue, so want to get it right

 

I’d like to take back what I wrote above. There was a thread on this site where a guy replaced his PCV valve but still got the lean codes. He gave it to an independent Land Rover shop and they charged him $1900, stating his valve cover was leaking and drawing in air. I had the exact same line given to me. I too installed my PCV valve myself. I thought I had done it correctly because it was idling fine and I didn’t hear any whistle. I never go to Land Rover mechanics but since I had a warranty I didn’t care to give it any real thought. I never go to Land Rover mechanics for the experience I had. They told me the valve cover was leaking air and there was a whistle coming from it. They first quoted me $1400. When they found I had a warranty they wanted $1900. Then when I introduced those aluminum pipes to be replaced since they would be taking them off anyway, they began scrambling and then wanting money for the super charger gasket and new valve covers in case they are warped. Basically what happened was they now HAD to do the job since I wanted the metal pipes installed and I could see the free $1900 they were going to take from me was now $1900 + parts they were first never going to buy. Long story short, I wasn’t handing over these people $800 of my own money, not when I could tell something was up. I called up my mechanic in riverside that I have known for 20 years. Drove it to him immediately. He’s not a Land Rover mechanic. He had me pop the hood when I came in and he had a 2’ piece of garden hose with him. He showed me that my PCV was whistling. As soon as the car cooled down he installed it correctly and the car is 100%. I am an idiot, but in my defense the idea valve cover gaskets could cause lean codes made no sense to me. Those PCV valves are really tricky to get right, in my opinion. This website and the Land Rover forums in general are incredibly helpful, but the post by the guy who did his PCV valve himself and then tells everyone that his valve cover was the culprit should be removed. Valve covers will not do that. That guy was conned. I nearly fell into the same con.
I was also misled by a YouTube video by Storey Wilson. He’s the guy who sells the software for the gen 3 range rovers. I thought he was worth listening to because he sells the software, when he said pvc valves should be changed every 30,000 miles. I disagree now. They tear and draw in more air than normal and they throw the lean codes. That is all. They are not going to blow your gaskets. When they draw in too much air your car will idle terribly and that’s it. My mechanic of 20 years said they should have done a recall on the PCV valves. They shouldn’t tear like they are. In hindsight I don’t think Storey Wilson had anything to do with that software since “petrol engine” is used. It’s from the UK or somewhere and he merely distributed it.

The terrible thing about that San Diego Land Rover shop was it was recommended by someone and it’s a big one with a GREAT reputation. People trust them! They are horrible people and they have a great reputation! Thieves. It’s why I do not go to Land Rover mechanics and it is the last time I go to Land Rover mechanics.
I apologize for the misinformation. Hopefully the aftermarket PCV valves are made better than the factory ones and I won’t have to replace it again, and I won’t be replacing it again until the codes come on.

 

I was also misled by a YouTube video by Storey Wilson. He’s the guy who sells the software for the gen 3 range rovers. I thought he was worth listening to because he sells the software, when he said pvc valves should be changed every 30,000 miles. I disagree now.
....They are not going to blow your gaskets

Storey Wilson's PCV/CCV/OSV valve info was on the 2003-2005 BMW M62 engine and is spot on. That engine, if you research it, is plagued with a poorly designed crank case vent system that should be inspected and replaced often. In colder weather, if the system is not 100%, the mixture of oil and water vapor freezes inside the PCV valve. That causes over pressurization of the crank case and typically results in a leaking passenger side valve cover gasket. Do a bit of research and you will find this.

Really should edit your post, he does know what he is talking about as any M62 owner is well aware. Further, his software did serve a purpose and was helpful to many.

Regarding dealerships, my experience is that mechanics do things in a manner to minimize callbacks - They don't get paid for doing the same job over again when it's not right the first time. They will quote replacement of any items that might lead to a callback, hence the suggestion of replacing valve covers. I'm sure an honest mechanic would verify it does indeed require replacement once removed. They also don't want to have to stop work and call the customer to approve replacement or wait for unplanned parts to arrive. You as a customer don't want additional unexpected expenses beyond what was originally quoted, especially items tacked on to your bill while your car is torn apart making it difficult to say no. That's just an experienced mechanic preparing you for the expense up front, experience they gained the hard way likely from a callback. The customer should be happy that they were only inconvenienced once to have it repaired properly the first time.

I have adopted a similar methodology when doing the work myself and personally don't like anyone else touching my vehicles. If I'm going to remove a part that will likely fail within a year or two in the process of doing another repair or that I have good access to while performing another repair, it gets replaced within reason and where it makes sense economically. Replacing the PCV valves as proactive maintenance on the 5.0 SC were a perfect example and met all of the criteria while doing the timing chain job - They were likely to fail in the near future, access to them was very limited once the SC was installed and economically it made sense for under $100.

The idea valve cover gaskets could cause lean codes made no sense to me

A leaking valve cover can cause rough idle/lean codes if it is allowing unmetered air to enter the intake through the PCV valve.

Hopefully the aftermarket PCV valves are made better than the factory ones and I won’t have to replace it again

It is quite rare that any aftermarket part is better than the OEM part. I would not trust a chinese knock off PCV valve. I had an experience where I purchased what were marketed as OEM PCV valves for the 4.4l AJ V8 and turned out to be knock offs. The new PCVs resulted in reduced performance messages on the dash. Bad PCV valves can result in excessive vacuum which pulls oil into the intake. That oil can hydrolock cylinders under certain conditions causing engine failure. Not worth the risk to save a few bucks.

 

Storey Wilson's PCV/CCV/OSV valve info was on the 2003-2005 BMW M62 engine and is spot on. That engine, if you research it, is plagued with a poorly designed crank case vent system that should be inspected and replaced often. In colder weather, if the system is not 100%, the mixture of oil and water vapor freezes inside the PCV valve. That causes over pressurization of the crank case and typically results in a leaking passenger side valve cover gasket. Do a bit of research and you will find this.

Really should edit your post, he does know what he is talking about as any M62 owner is well aware. Further, his software did serve a purpose and was helpful to many.

Regarding dealerships, my experience is that mechanics do things in a manner to minimize callbacks - They don't get paid for doing the same job over again when it's not right the first time. They will quote replacement of any items that might lead to a callback, hence the suggestion of replacing valve covers. I'm sure an honest mechanic would verify it does indeed require replacement once removed. They also don't want to have to stop work and call the customer to approve replacement or wait for unplanned parts to arrive. You as a customer don't want additional unexpected expenses beyond what was originally quoted, especially items tacked on to your bill while your car is torn apart making it difficult to say no. That's just an experienced mechanic preparing you for the expense up front, experience they gained the hard way likely from a callback. The customer should be happy that they were only inconvenienced once to have it repaired properly the first time.

I have adopted a similar methodology when doing the work myself and personally don't like anyone else touching my vehicles. If I'm going to remove a part that will likely fail within a year or two in the process of doing another repair or that I have good access to while performing another repair, it gets replaced within reason and where it makes sense economically. Replacing the PCV valves as proactive maintenance on the 5.0 SC were a perfect example and met all of the criteria while doing the timing chain job - They were likely to fail in the near future, access to them was very limited once the SC was installed and economically it made sense for under $100.


A leaking valve cover can cause rough idle/lean codes if it is allowing unmetered air to enter the intake through the PCV valve.


It is quite rare that any aftermarket part is better than the OEM part. I would not trust a chinese knock off PCV valve. I had an experience where I purchased what were marketed as OEM PCV valves for the 4.4l AJ V8 and turned out to be knock offs. The new PCVs resulted in reduced performance messages on the dash. Bad PCV valves can result in excessive vacuum which pulls oil into the intake. That oil can hydrolock cylinders under certain conditions causing engine failure. Not worth the risk to save a few bucks.

Nah. The mechanic was purely trying to rip me off. There was absolutely nothing wrong with the valve cover gaskets. I do all the work myself on my vehicles also. I’ve got the 2005 L322 with 225,000 miles now. Took that to another independent rover shop and he might as well have been looking into a bush. Had no idea or interest in the vehicle. I told him the alternator was not the issue and it had been replaced twice already so he decided to lie and say it is overcharging. It was not. Got the car back in exactly the same state I gave it to him in only with a 3rd alternator. These rover mechanics charge a lot because they haven’t a clue what they are doing. Finding a competent one is the same as finding a competent anybody in anything. My mechanic of 20 years works on ALL vehicles and is very successful. He knows the 2005 L322 is nothing special. It’s just a vehicle like anything else. A bad PCV valve that throws a lean code is not going to result in a failed valve cover gasket on the L405. That’s just dumb. I honestly think they came to that conclusion by reading posts online. I agree the Chinese PCV valves are a bad idea. As I stated I purchased multiples and the strength of the rubber varies. The one from Atlantic British matches the OEM.

 

I think the fact Land Rover no longer makes any of the other PCV valves anymore OTHER than the one ending in -79 hopefully means they made one out of a rubber type that will no longer fail. It’s not like that rubber is flapping madly in the wind. They shouldn’t have torn. My mechanic of 20 years said there should have been a recall on it and I agree completely.
im not sure how Storey Wilson blames freezing for the failure of gaskets in the engine. How long does it take for the PVC to thaw after an engine fires up? 10-15 minutes tops? His 30,000 mile replacement recommendation is excessive. Id agree at 50,000 but 30,000 is way too early, in my opinion. I also don’t know how you explain his software being in UK terms such as “petrol” engine. I don’t believe it’s his software. But these are all my opinions, of course. If anyone feels paranoid about PCV on the L405, changing them out at 50,000 miles will ensure they are always tip top. I’ll probably do that myself since my mechanic will charge me 50 bucks to do the 20 minute job. And I’m interested to see if they made them out of a rubber that doesn’t fail. They never should have cracked the way they are.

 

...
im not sure how Storey Wilson blames freezing for the failure of gaskets in the engine. How long does it take for the PVC to thaw after an engine fires up? 10-15 minutes tops? His 30,000 mile replacement recommendation is excessive. Id agree at 50,000 but 30,000 is way too early, in my opinion. I also don’t know how you explain his software being in UK terms such as “petrol” engine. I don’t believe it’s his software. But these are all my opinions, of course. If anyone feels paranoid about PCV on the L405, changing them out at 50,000 miles will ensure they are always tip top...

I completely disagree with klf4000's opinion on Storey Wilson's knowledge on the M62 era L322 and believe he must be completely ignorant and uninformed about the M62.
For one thing, it doesn't have a simple, conventional PCV valve.
I've had my 2003 L322 for over 15 years and have been on the forum since then.
The PCV system on the BMW M62 is nothing like the PCV system in the engines that followed it, including the L405 (which has nothing to do with this topic/post/forum that I can understand).
The M62 PCV system does require much more care than that of any other PCV system including my 2012 RR, and certainly does cause catastrophic problems if/when it freezes-up due to excessive condensation and weakened PCV hoses when exposed to freezing temps.
Storey Wilson's All Comms tool (yes, I know it's his product) is the interface I've used for my 2003 for over 10 years now.
I don't know how someone could explain that an American can't use the word "petrol" in describing a British-made vehicle.
Unfortunately if the use of the word "petrol" passes for proof of a silly disbelief of a known fact, I couldn't believe other opinion or anything else this person believes either.
Many of us, world-wide use the reference of "petrol" regarding our Land Rovers - and Jaguars too.

klf4000 can have his/her own beliefs, and I fully respect that. I only chime-in because it would be unfortunate for other M62 owners to read klf4000's post and form their opinion on Storey Wilson's All Comms tool or any of his products/info from this faulty opinion.

 

Lastly. I believe is ALWAYS keeping the engine running at 100% perfection and dealing with error codes immediately. It’s why I have a 2005 with a beautiful running engine. Sure, if you ignore check engine lights then ya, do the PCV just in case. But if you understand the importance of addressing your engine issues the moment they arise, replacing the PCB Willy nilly is a waste of time and money. Attached are the SYMPTOMS of a failed/failing PCV valve. If you do not have ANY of these symptoms, then in MY opinion changing the PCV is a waste of time.

 

The best thing anyone can do that owns a rover is find a mechanic that is NOT a rover mechanic and knows they are just cars. No differnt from any other vehicle on the road. I used to flip rovers 15 years ago with my dad. We did it for fun because we liked problem solving together. These sellers had phone book sized repair orders of work completed. Massive. My dad one day held out the biggest one and said “what are they doing to these cars?” We would read the repair orders and laugh. We would look at the quotes to repair what was wrong with them and wonder how on earth they were getting away with it. We would fix them fast for next to the cost of nothing and sell them off for a tidy profit. Land Rover mechanics are out to make money. It’s WHY they are Land Rover mechanics and not Honda mechanics! Again, best thing you can do if you own a rover is stay away from rover mechanics. And second thing is ALWAYS address your check engine light immediately. I think the BMW TU is a fantastic motor. The sound it makes on acceleration is the best sounding motor of them all. If maintained it feels like it will last forever. I love the L405 since I got the suspension right with the H tires, but it still is not as good as the BMw.

 

The best thing anyone can do that owns a rover is find a mechanic that is NOT a rover mechanic and knows they are just cars. No differnt from any other vehicle on the road.

This is the worst thing that one can do to a Range Rover or any other high end brand. One of the reasons they get such a bad rap is due to people who think they know what they are doing, working on stuff that they have little experience with. It almost guarantees to cause more problems for the future.

Anyone can do the routine stuff like oil and filter changes or brake pad replacement but when you get further into maintenance and repairs, you need knowledgeable/experienced mechanics. Having said that there are some mechanics that I would not trust to check the tire pressures let alone perform oil changes or more complicated jobs..

 

Storey Wilson is a good guy and developed software for the P38 when there were no other affordable options. The L322 product came later and it seems to work well. The guy has done a lot for the LR community and is himself an enthusiast.