Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: BgBLizard on 11 April 2010, 08:53:11
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Hi All
Just wondering if anyone could help? I have a 1999 3.0 MV6 which has just started making a noise from the engine. This noise is present at start up and when warm but only up to 3000 rpm and is accompanied with vibration. There is also a lack of performance as well.
The noise is low in pitch, almost a knockand it does not get any worse under heavy load. It is more noticeable from inside the car more than under the bonnet but I cannot pinpoint exactly where it is coming from.
So far I have changed the oil and checked the timing belt just to see if it had slipped a tooth but all was fine. I have checked all the alternator aircon and steering pump bearings all that was apparent was a little end play in the water pump.
It would be much appreciated if any one could help, even if it is just to eliminate certain factors.
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Hello,If you feel you need to totaly clear all auxillarys, just warm up engine slightly, then remove auxillary belt. Could be your tensioner. Hope you find it I know the feeling very well :y :y
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Thanks for that Cliffo
Will try that tonight after work.
I am concerned that it it is something more serious but have little experiance more major engine problems so do not know what they sound like.
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hydraulic lifters ?
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Thanks Mark
Anyone tell me the best way to check this and what do I look for. I have fitted vectra rocker covers on it so haven't got any issues with poping them off.
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you can get lifter treatment from you local factor for about £7 . You just ad it to the oil job done :y
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Thanks I will try that but I did use Wynns engine flush when I changed the oil.
Also if there is anything else I can check before I dump the timming belt covers and plenum back on.
Thanks in advance, all your help is appreciated especialy as the Misses is making noises about changing cars >:( do wynns have something for that :)
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engine flush is never a good idea in the v6 . It gets stuck in the oil cooler and thins your new oil . Try giving it another oil change followed by Wynns lifter treatment that should sort it out for you :y :y
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Hi All
Thank's all for your suggestions I have now added the Wynns lifter treatment and run it for a week, this appears not have not improved the problem even a little bit, just less tappity in the mornings.
Also dropped off the auxilary belt and no luck there either.
Had a chat with a guy at work and he had a listen, now after interigation (of me not the car) he extracted that I had used injector cleaner a couple days before this started ::) so his theory is that I blocked an injector. He has ruled out plugs leads and dis pack for reasons to long to mention. My question is if anyone can help, how do I test which one I have blocked and is there any possibility of repair/unblocking.
Thanks in advance.
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Where are you? Maybe someone close by can have a listen?
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Yeovil Somerset
Car drives ok just a bit sluggish so I could travel.
Also possibly down at Bournemouth on Thursday.
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Yeovil Somerset
Car drives ok just a bit sluggish so I could travel.
Also possibly down at Bournemouth on Thursday.
From me.... miles away and even further away ;D ;D Sorry :(
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Hi
It has been confirmed that the problem is a misfire but not what is causing it.
Didn't think to do the paper clip test originally as there was no engine light on but it appears that I do have fault 19 RPM incorrect crank sensor. Could this be the cause of my trouble or just an old code in the memory.
Thanks in advance
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It really wont help....and can cuase random running to so needs eliminating
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Thanks Mark
Just thought to add this missfire is not as bad as losing one pot all together, it is like it's running on 5 1/2 if you pull the leads off one by one it dose not seem to make much differance hope this helps
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sorry me again
Just changed the crank sensor and I still have fault 19 and the missfire any help would be appreciated.