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[bash]

[size=14]When i start my 2002 Omega 2.2 Litre up from cold i can hear what i thought was an exhaust blow BUT it sounds more like a small compressor pump it goes after the engine is hot. I hear that the suspension goes up and down could it be anything to do with this . It is around the front N/S area. I have checked the exhaust and manifold cannot find any leaks there. Cheers bash [/size]

[TheBoy]

[size=14]When i start my 2002 Omega 2.2 Litre up from cold i can hear what i thought was an exhaust blow BUT it sounds more like a small compressor pump it goes after the engine is hot. I hear that the suspension goes up and down could it be anything to do with this . It is around the front N/S area. I have checked the exhaust and manifold cannot find any leaks there. Cheers bash [/size]

Not entirely sure.  Earlier ones (2.0/2.5/3.0) have a noisy pump there that runs for 30s, but secondary air injection not fitted to 2.2....

[Auto Addict]

[size=14]When i start my 2002 Omega 2.2 Litre up from cold i can hear what i thought was an exhaust blow BUT it sounds more like a small compressor pump it goes after the engine is hot.[/size]

With or without the aircon on?

[size=14]I hear that the suspension goes up and down could it be anything to do with this . It is around the front N/S area. I have checked the exhaust and manifold cannot find any leaks there. Cheers bash [/size]

There is nothing 'clever' about 2.2 suspension, it's bog standard.

[bash]

I thought it had auto suspension on my model, i am sure it is the pump on the N/S that is making the noice, after about 50 seconds to a minute it goes away. Could any one tell me if the idle speed can be highered if the car is put on the diagnisis machine as mine is running at its lowest setting at idle just ocer 600 revs, if i hold it at 750 revs it is 100% smoother cheers bash

[TheBoy]

I thought it had auto suspension on my model, i am sure it is the pump on the N/S that is making the noice, after about 50 seconds to a minute it goes away. Could any one tell me if the idle speed can be highered if the car is put on the diagnisis machine as mine is running at its lowest setting at idle just ocer 600 revs, if i hold it at 750 revs it is 100% smoother cheers bash

Are you sure its a 2.2?

[bash]

[size=14][/size][size=16]Yes its a 2.2 and as i dont have a manual yet, the new ones by Haynes are just service manuals so i would like to get a factory copy iy anyone knows of any available. So i am not 100% sure it was i am sure i read in my hand book the rear suspension goes up and down to compensate for the number of people sat there. Again at first i thought manifold leak but i have taken the sheilds of the manifold and cannot for the life of me find any leak cheers Tony [/size]

[TheBoy]

[size=14][/size][size=16]Yes its a 2.2 and as i dont have a manual yet, the new ones by Haynes are just service manuals so i would like to get a factory copy iy anyone knows of any available. So i am not 100% sure it was i am sure i read in my hand book the rear suspension goes up and down to compensate for the number of people sat there. Again at first i thought manifold leak but i have taken the sheilds of the manifold and cannot for the life of me find any leak cheers Tony [/size]

The glovebox manuals are downloadable from Vauxhall in pdf.  Haynes is the main 'consumer servicing' manual. TIS 2000 is the electronic service/repair info guide, but as it is commercial, we do not allow discussion of how to acquire it without buying it (around £1000 per year).

Generally, only Elites have self levelling suspension, and Elites were only v6 in petrol, and both diesels (2.2 and 2.5). Yours isn't a diesel is it?

[omegadan2.2i]

[size=14][/size][size=16]Yes its a 2.2 and as i dont have a manual yet, the new ones by Haynes are just service manuals so i would like to get a factory copy iy anyone knows of any available. So i am not 100% sure it was i am sure i read in my hand book the rear suspension goes up and down to compensate for the number of people sat there. Again at first i thought manifold leak but i have taken the sheilds of the manifold and cannot for the life of me find any leak cheers Tony [/size]

Hi Tony

I have just had my exhaust manifold gasket replaced on my 2.2.  The manifold (fortunately) had not cracked, but the gasket WAS blowing on number 1 - I did the same as you, took the shield off and had a look myself but could not see any leaks but because the manifold had not cracked there was nothing to 'see' so to speak, but I could 'hear' it from number 1.   When starting from cold I could hear it for approx 30 secs then goes as soon as the engine warms up.

My old manifold gasket was 'weird' in the fact that it was made of five metal 'layers' - seemed to make a thickness up of around 5mm!!  The modified gasket was only made of three layers and was different in other ways.  Once the old gasket was removed, you could definately see where it had been blowing on number 1.

Have another look (and listen!) Tony or get a trustworthy good mechanic to have a look.  This is quite a common problem (I am sure the other OOF members will agree!).  A word of warning though - if you do need to replace the gasket, you WILL get at least ONE snapped stud unless you are VERY lucky (sods law always thinks otherwise) - I had one snap right a the front near number 1 - really awkward but managed to do it!!

Dan

[bash]

Cheers Dan i will have another look, i am more than happy to recheck any thing Tony