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VZ Alloytec P0011


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#1 rodomo

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Posted 18 February 2017 - 08:38 PM

The son in law limped home Thursday night, came off the 110kph freeway but stalled at every round about there after.

His neighbour has a scan tool and fault P0011 was showing along with the engine light and service engine oil warnings.

So he rings Mum (my partner)............Mum? can I borrow your car for work? Mine is running like shit?

He limps his VZ around here and steels Mum's Subi.

Symptoms of P0011
•Loss of gas mileage
•Engine stalling
•Possibly engine failure
•Engine contamination
•If the actual solenoid does fail this will cause a retardation of the intake valve operation
•Check engine light will appear
•Possibly camshaft failure due to lack of lubrication

These Alloytecs are renowned for timing chain problems.

Car has 260k's on it but is 20k's overdue for service and the oil level is well down past the low mark.

Friday morning I topped up the oil, ran the engine till the cooling fans cycled a couple of times, then turned it off, jacked up the rear, (the sump plug is on the front of the sump) and drained the oil.

It drained all day, he want's to do everything himself so he asked me not to do too much until he came home from work.

He put the plug back in, filled it with new oil and added flush then ran it I reckon for at least half an hour at 1500rpm as anything lower and it would misfire, fart, pigroot and try to stall.

By the end of this, it was running well and idled ok with a bit of a miss 'n' fart here and there.

So.....He drained the oil again, changed the filter and filled it again with new oil.

When started it wouldn't idle again was farting and pigrooting like an XU-1 with a couple of worn cam lobes.

Hmmmmmmmmmmmmm????????????

So............Next we pulled out the cam actuators. Suspended them in grease and wax remover and gave the fine gauzes a scrub with an old tooth brush. Soaked again, rinsed, tapped, scrubbed, rinsed tapped, scrubbed and so on until when shook, we could hear things inside rattling.

Put them back in and instant perfect idle.

This arvo he text me and said his engine warnings had turned themselves off!

Dodged a bullet?

Edited by rodomo, 18 February 2017 - 08:41 PM.


#2 308 Sunbird

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Posted 19 February 2017 - 12:16 PM

Good result for your hard work Rob.



#3 rodomo

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Posted 19 February 2017 - 08:37 PM

Thanks mate, I'm no guru on these things and had to use my brain a bit.........

 

I've often wondered how Holden could get is so wrong with these?

 

And also wondered how many timing chain sets have been changed because of this fault?

 

Having said that, I have towed a VE into the workshop with a snapped timing chain.



#4 Statler

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Posted 19 February 2017 - 11:15 PM

Cam actuators?



#5 Shiney005

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Posted 20 February 2017 - 09:00 AM

Actuators or followers. I've always called them that with OHC.

Attached File  DSCF7841-1.jpg   112.89K   11 downloads



#6 308 Sunbird

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Posted 20 February 2017 - 11:52 AM

I recon these things would benefit from tighter oil change intervals than they recommend.



#7 LJ RB30

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Posted 20 February 2017 - 12:15 PM

Thats a nice clean motor inside!

 

These motors definetly need regular services (& more!)

 

These are pics of my mates sons old car!

 

VE SV6 bought at 70,000ks !

 

NOT serviced at all by the son!!

 

About 120,000ks it wouldn't start at the shops!

 

No compression apparantly!

 

3 out of 4 cam caps were cracked

IMG_4341_zpsa4y0behw.jpg

IMG_4342_zpspjyseeut.jpg

IMG_4344_zpsbo3ave1a.jpg

IMG_4345_zpseq37nx2s.jpg


Edited by LJ RB30, 20 February 2017 - 12:16 PM.


#8 grumpy xu1

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Posted 20 February 2017 - 04:44 PM

Yuk Trevor, that engine looks disgusting inside. Be surprised if the oil was ever changed in the 50,000 klms. & it looks like cheap oil before that. The alloytecs I've seen regularly serviced have up to 300,000 on the clock, all of those are a maximum of 10,000 klms intervals some every 5,000, but they're then reliable. Any I've seen with the 15,000 have had the issues. If you have a car 35,000 klms between services & low oil level any brand, you have to expect trouble. Gary

#9 LJ RB30

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Posted 20 February 2017 - 05:31 PM

Hey Grumpy XU1

Yep it's a mess!

It then led to him being ripped off for a "low k motor!" That was an absolute price of shit & multiple engine light episodes etc etc

Then another "good" motor then he sold it!

I have a VZ V6 with 330000 on it & do oil changes less than 10000.

Hey Rodomo which bits did you remove & clean??

Edited by LJ RB30, 20 February 2017 - 05:40 PM.


#10 rodomo

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Posted 20 February 2017 - 10:54 PM

Hey Grumpy XU1Hey Rodomo which bits did you remove & clean??

These things have variable valve timing.

My understanding is the actuators squirt oil into the gizmos on the cam drive sprockets that rotates the cam within the gismo to alter the valve timing at different loads/speeds.

The actuators are fine tolerance and have fine gauzes around where the oil enters them.

They bolt in externally, one on each timing cover. ECU has to be unbolted to get the driver's side out.

Not a big job at all.

Attached Files


Edited by rodomo, 20 February 2017 - 11:00 PM.


#11 Shiney005

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Posted 21 February 2017 - 09:52 AM

Awesome piece of info there Rob



#12 LJ RB30

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Posted 21 February 2017 - 01:00 PM

They are the cam position sensors. I replaced the seals for those on my VZ not long ago.

Don't think they have anything to do with actuating the variable timing.

But certainly may get stray readings if dirty with minor metal fragments.

I could be wrong but lol

Think I have an eBay manual for these motors so I might have a squiz!

Either way if it runs better then it's a cheap fix! 😁😁

#13 rodomo

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Posted 21 February 2017 - 11:25 PM

The cam position sensors are either side of the yellow circle in the picture above. With the 3 pin plugs (actuator is 2 pin). They read slotted discs on the front of the cams.

http://premierautotr...ion-sensors.php

#14 LJ RB30

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Posted 22 February 2017 - 09:15 AM

Just had a look at my daily driver lol

Your right.

I'll go back to my box now

#15 S pack

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Posted 13 February 2019 - 11:33 AM

A question to Rob & Trevor on the VZ 3.6 Alloytec.

Is replacement of the Cam position sensor seals a difficult job?

Also are there any seals on the Cam Actuators that should also be replaced?

 

Cheers

Dave.



#16 LJ RB30

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Posted 13 February 2019 - 10:38 PM

30min job for both from memory.

Unplug

unblot

remove

pop old seal out

clean area that seal OD contacts

Add sealant to OD of new seal (think i just used permatex non hardening )

Fitted new seal using a socket the size of the seal OD & hammer

Lube up sensor & insert

Bolt up

plug in

crack beer! (can be step 1 ideally!)



#17 S pack

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Posted 14 February 2019 - 06:16 AM

Thanks Trevor,

I'll organise the necessary seals and have a crack at it myself.

My mechanic was making it out to be this big difficult job that was going to cost me the family jewels.

 

Cheers

Dave.



#18 LJ RB30

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Posted 14 February 2019 - 08:06 AM

It’s easy as 😁
Think there was something of an obstruction in front one sensor but also was easily put aside by removal of one bolt.
Definitely an easy job 👍

Edited by LJ RB30, 14 February 2019 - 08:07 AM.


#19 S pack

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Posted 14 February 2019 - 08:25 AM

It’s easy as
Think there was something of an obstruction in front one sensor but also was easily put aside by removal of one bolt.
Definitely an easy job

The PCM is mounted on the front of the right bank (stupid place to mount electronics), as far as I can see that is the only thing directly in the way.


Edited by S pack, 14 February 2019 - 08:29 AM.


#20 UCgazman

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Posted 14 February 2019 - 01:02 PM

A lot of modern cars now with engine mounted electronics - its ensures reduced vehicle lifespan, higher repair bills and increased dealer sales (when you get sick of replacing modules so you trade your lightly used pos for a new pos...).






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