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Discussion Starter #1
Evening all! I’m back with a Vauxhall after a sabbatical with an Audi. Bit of a history and a a problem if you make it all the way though my little story.
I Fancied something a bit newer with a bit of boost after my 1.8 mk4. So for the princely sum of £2700 I picked up this little gem 6 months ago.
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Initial thought was, this is great! Plenty of mod cons, and the Mrs loves it. As she was going to be using it on a daily basis (I have a different car for my work) I wanted to make sure it was up to speed.
So this brings me to my initial issue. Driving it back, got a Service Vehicle Soon warning.
Oh, the chap I bought it from said he serviced it 4 months before that? Meh, I prefer to get it done so I know the history, so no biggie!
Sericed the car and reset all counters, but while servicing, found that the rocket cover gasket looked to be gone due to the amount off oil in the spark plug wells and oil down the front of the engine. I always thought the car felt a bit down on power so this could be the reason then!
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The Mrs took me away for my 40th shortly after, so I decided that rather than get my hands dirty due to becoming an old man I would ship this one out while we were away. I have a garage that I trust but they are not Vauxhall specialists. It’s just a rocker cover gasket though so should be straight forwards right?
Picked the car up after and initial thought was Bingo! Problem solved. Probably covered about 100 miles and although still felt a bit sluggish for a 140bhp I figured that was as it was. Room for improvement later I reckoned 😁
Then the Covid stuff hit. The car didn’t really get used much for about 8 weeks due to only supermarket running around. However, we had an opportunity to take it out and stretch its legs at the beginning of the weekend after about 80 miles the car felt misfirey (got to be a word surely?) and sluggish again.
And the old friend the SVS warning. After a bit of research it appears that this message is the one that means take it back to the dealer for a proper diagnosis, rather than actually service the vehicle! Ok methinks, do I have a sensor issue? Whatever happens to the good old days of a proper EML? Why make it complicated Mr Vauxhall??
So keeping my eyes open for an OPCOM that will work on my car then, but too much conflicting information (mine is a 2010 model)
Then tonight, quick run to the supermarket, and when I pulled up back home got a burning smell. Now the last time I had this happen, the rocker cover had gone and there was oil everywhere... but I’ve just had that fixed?!? Surely it can’t be...
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hmmm, oil around the oil cap area, and quite a mess it’s made too. Might explain the message coming back up And the sluggishness as it’s all over the coil pack and I’ll bet good money on the fact as soon as I pull that coil pack it will be all over at least 1 plug.
Didn’t see this when I pulled away either...
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Should have been an indication really.

So, question time then.
Why is the oil blowing back past the oil cap?
In theory there should be a reason the pressure is coming back through there, shouldn’t there?
Any advice you guys can offer would be awesome!
Also, if someone knows of a link to a current OPCOM that would work on mine, it would be appreciated 👍🏻
 

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I wonder if it is the pcv and oil separator in the cam cover housing.
Is it hard to remove the oil filler cap when the engine is running?
 

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Discussion Starter #3
Thanks Redman,
After a bit of research last night till the wee hours bought me to the same conclusion. Went out this morning and cleared all the oil I could see and ran it up to temp to check if I could see it spraying out. Nothing on tickover, so I took it for a spin literally around the block.
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Muchos oil and muchos smoke. Mmmm burning oil smell 🤮
That will be why I should have replaced the coil pack cover then. tried to remove the oil cap and the pressure was trying to hold it in. Can also hear a whistling from the valve hole. So my question now is this, if I replace the cover does this normally fix it, or is this likely to be another issue too? I’m trying to de use whether to replace the cover as it’s a part held in the local parts department at the dealer, or send it to and Indy, in case of further issue? (Heard rumour about a valve in the inlet too?)
Thanks for reading about my car woes!
 

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Discussion Starter #4
Sorry, I know that last question is a bit like ‘how long is a bit of string’ but what I mean is do you normally get away with just replacing the cam cover, or is this commonly a chasing issues type job?
 

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Here is a YouTube link explaining how the crank ventilation works


don't forget to check your oil level whilst you are losing oil.
Hopefully it will solve the issue if you replace it . You could try getting the part from autovaux online,could be cheaper than a dealer.
 

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Discussion Starter #6 (Edited)
Quick question, when is this engine typically supposed to come on boost? Mine appears to be after about 3000rpm, which seems a bit high but I have nothing to compare it too really?
 

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Discussion Starter #7
So 10 days on and I’m feeling a bit deflated. It’s been to a garage who have replaced the rocker cover and told me it was fine and ready to go at £275, but after driving it home it came back on with the service vehicle soon warning, went gutless and when I got home and checked it there was evidence of oil around the valve again.
The garage were pretty good about it and got it back the next day. The oil leak has now been cured with a replacement oil cap which now sits tightly in the cover. They also said the lack of power and SVS was down to an intercooler pipe which wasn’t sealing on the intercooler and was dripping oil from the previous rocker Valve failure. One new pipe fitted and codes cleared and they said tonight that it was good to go (£255 this time)
I picked the car up after work, and drove it back with high hopes. However the car felt a bit ‘flat’. Got on the slip road for the motorway and as soon as I hit 60mph there was the message I’d hoped not to see ‘SVS’
🤦🏻‍♂️ And no pull at all up to 70 (ish)
I need to get it plugged in again but I just can’t afford to take it back to the garage again as I’m just off Furlow and waiting for my money to build back up again.
Is there any common issues that fit my description? I’m not to bad with the spanner’s but as the wife drives it I need it to be right. (For her safety and my potential earbashing 😭)
 

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You need to find out what the fault codes are really. Perhaps invest in a good obd code reader. Did the garage give you any fault codes from them scanning it?
 

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Discussion Starter #9
Well long time no speak! Same old story with this one but some more bits of information if anyone can assist?

After my last message I tried to explore a few things myself after reading other posts and how the PCV system works. And getting some history on the car, It looks like there is yellow paint on the turbo itself which is usually a sure sign of a second hand/breakers turbo. The wastegate stem is pretty corroded looking too, but The wastegate does still open.
I decided that i would give the garage one more chance to look it over. They came back after about 3 hours saying that I was to pick the car up as there was not a lot they could do other than just start swapping sensors as they didn’t know if one/which one was faulty. However, they did experience the fault themselves this time which was at least something.
The specifics of what they checked was they did get a camera in the system and said that the turbo did appear ok, and (After prompting) that the orange nipple was still in the Manifold. He also checked resistances on all 4 of the boost related sensors which he said came back fine. He kindly told me no charge, but said that short of guessing and changing out parts that he could go no further.
I spoke to some of that lads at work, and one managed to get hold of a Smoke machine, so we could check for leaks. So yesterday we set up the system and put some smoke through. After managing to get smoke to feed though the air box (With the filter removed) and running for for 5 mins there was still no sign of leaks.
Back to square one then.
So if anyone has any ideas I’m all ears! the one and only code it’s ever been is p0299, until it was smoked yesterday.


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now I should say I went to restart the car and the ignition was left on, so the battery had run a bit too flat and had to be jumped, So may explain the low voltage sensor. The intake manifold performance is also new and only happened after smoking but likely because we tried to put it straight into a pipe post MAF sensor, so car wouldn’t run to get the smoke around the system.
Anyway, thanks for taking the time to read this, any help would be appreciated!
 
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