common problem
sbd do a nylon replacement to help resolve this problem

 

Sounds like a plan. Any idea how much the nylon replacement from SBD is and how much it would cost to get it fitted?

Cheers
Craig

 

they not that cheap cant remember, very easy to do yourself.
worth taking your one out first and polish up with some 1200 wet a dry paper
and refit .not hard to do.

 

Anyone got any tips as to how to get to the relief valve and remove / replace it? It's a X20XEV Cally if that makes any difference.

Cheers
Craig

 

undo large nut at front bottom of oil pump opposite site to oil filter .take out spring stick finger up hole and remove valve. if stuck may have to insert a piece or wire with a hook on it to pull it out.

 

Relief valve's are about 70 quid from sbd, exspensive i know but it helped mine when i was having problems

 

Just found this thread with a picture of said relief valve.

http://www.migweb.co.uk/forums/showthread.php?t=150352

The thing that concerns me is the sentence talking about removing the PAS pump. Does it need to be removed to get at the relief valve?

Cheers
Craig

 

sorry can't help you there my engine in a westfield and dont use power steering pump .therefore not a problem.

 

sorry can't help you there my engine in a westfield and dont use power steering pump .therefore not a problem.

Blimey, I bet that thing goes like stink with a 2.0 16v weighing what it does. The Westfield factory is just up the road from where I work in Kingswinford, West Midlands. Probably the places only claim to fame.

Cheers
Craig

 

dont go bad 179bhp at wheels at 650 kilo but not the lightest of westfields.0to 60 between 4and 5 sec max speed135mph but only braved 127mph

 

Well the cars in the Vauxhall garage being serviced and the mechanic reckons it's a big job to replace the relief valve and the air con pump, etc will have to come off. And even then theres no guarantee that it will be the relief valve, it could be the oil pump or some other problem so if the relief valve doesn't fix it then I'll have gone to the expense of getting that sorted and find out its something else I need to pay for.

Does it definitely sound like the relief valve? I start the car after leaving it standing, I get no oil pressure. I blip the throttle for a few seconds and then suddenly the oil pressure kicks in.

I got a figure of up to £500 assuming he has to test every possible cause of the pressure loss at startup so I'd rather get him to try fixing the most probable cause first.

Cheers
Craig

 

Oh, forgot to add. The mechanic said when he removed the oil filter after draining the oil from the engine nothing more came out when he'd expect more oil to come out, so not sure if that helps anyone make a diagnosis?

Cheers
Craig

 

When will people learn?
DO NOT take your car to a vaux dealer if you have ANY respect for your vehicle!
Dave

 

I'll learn one day. They've had the relief valve out and apparantly it's fine and the springs fine too, etc so looks like something a bit more serious.

There was talk of removing the sump which sounds expensive, although I'll have to book it back in for that.

Things that have been suggested include the Oil Strainer or the Oil Pump.

Cheers
Craig

 

Sorry to keep posting but just wondered if anyone had any input as to the cause of my oil pressure problems as I'm not entirely convinced that the relief valve can be ruled out.

Just to recap, when I start the car after it's been standing for a while I get no oil pressure whatsoever and I can hear the engine rattling. If I blip the throttle to around 2000rpm or so for a few seconds then the oil pressure will kick in and I'll get normal pressure for the duration the engine is running and can drive around as normal with the pressure behaving exactly as it should. Once I stop the engine and leave standing for a short period the same thing happens again when starting.

It seems that once the oil is moving around the engine things are fine, but the problem is getting it moving requires the throttle to be blipped. Now although I'm not mechanically minded I'd have thought that if it was the pump then I'd still have problems even after blipping the throttle.

Any advice?

Cheers
Craig

 

if you take the oil filter off, and the oil cooler sandwhich plate (if you have one) just off centre theres a ball and spring type non return valve. worth a look as its free.

the only other thing i can think of is blocked oil pickup pipe or failed pickup pipe seal, as vauxhall said.

other causes of low oil pressure are worn big end bearings, but as you say, its not so much low oil pressure, just some kind of fault of building up pressure

 

Cheers for that. I've just spoke to the mechanic and as they are doing a service I asked him to check the ball and spring valve you've described but he said that theres no oil cooler sandwich plate so he couldn't check the valve, although from reading your post it seems you just have to remove the sandwich plate to get at the valve rather than the valve being a part of the plate itself, although I might be reading it wrong!

Cheers
Craig

 

yeah its part of the pump, not the cooler sandwhich plate. if you dont have a cooler sandwhich plate you only need to remove the oil filter and it will be there.

 

Okay I picked the car up yesterday and the mechanic said when he put everything back together the oil pressure started working fine when starting the engine.

I verified this when I picked up the car, although it was difficult to tell as it's normally fine if you try starting within half an hour of stopping the engine, its when you give the oil chance to drain into the sump that it did it before and I'm not sure how long Vauxhall had it standing for.

So, this morning I start the engine and I get oil pressure fairly quickly, but the only confusing thing is, the engine blipped it's own throttle before the oil pressure kicked in this morning without me going near the accelerator which I've never seen it do before. Can they program the ECU to do that? If so then I'm a bit concerned that instead of getting to the bottom of the problem they've just set the ECU to blip the throttle on startup as a workaround.

Cheers
Craig

 

problem still sounded like oil relief valve to me.
mechanic sounds a bit dozy if he did not know about filter ball bearing.
which makes me think did he really check relief valve in the first place.
some mechanic,s [not saying this one] will hang the job out to get more money out you.hence its always good to do it yourself if you can.
regards pete

 

I've been convinced it's the relief valve from the start but it's difficult to argue with someone who "supposedly" knows more than you and is telling you otherwise.

If I still get problems with it then I'll order a Nylon relief valve kit from SBD and either attempt to fit it myself, or find a more respectable garage or someone who's done it before on a Cally who could give me a hand.

Cheers
Craig

 

if you have aircon on the car its a pain to get to the relief valve as the whole front engine mount has to come off. If you dont have aircon its about 30mins work to clean the valve.

 

I've got a feeling I've been conned by VX but I need some proof. They claim they've cleaned the relief valve but they did it too quick considering I've got air con and how big a job it sounds.

I've got it back and the pressure is kicking in automatically, but the only reason it's doing that is because the car is revving itself to 2000rpm for a few seconds (sometimes longer) when I start the engine.

It never used to do that so my suspicion is that instead of bothering to look at the relief valve VX have just set my car to rev itself for a few seconds which is enough to get the oil pressure to kick in. To me that's hiding the problem rather than fixing it.

So if I can stop the car revving itself to 2000rpm (sometimes only for a few seconds, sometimes for a minute) which I don't think it should be doin, then I reckon that my original oil pressure problem will magically return.

So how can I stop the car revving itself to 2000rpm by itself? It's a X20XEV.

Cheers
Craig

 

bump

 

Anyone?