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[Iain]

Heater wise,you need to find out if both pipes in and out of the matrix are warm firstly.....

Runnig wise i dont have a great deal of experience on the V6,ive only ever had 4 pots

Your welcome to come up,but i wouldn't recommend it with no tax...

[AllanGlasgow]

Haha thanks Iain, moment of madness there, as you can guess I'm still in shock from my call to the garage!

I'll check out the 2 pipes tomorrow, hopefully it will just be the blocked matrix that you've suggested. As for the plugs/coil, I might go for the old favourite and get my dad down to have a look at it!

Can you tell I'm desperate to get rid of the primera and get this baby on the road???!!!

[Iain]

The 'farting' you described would suggest to me its not coil pack or cam covers etc,that would be more irratic i would have thought..... and you described originally a regular constant fault

The vacumm fault mentioned above could be the problem....

Can anyone else confirm if a blocked ICV cause this?

[ffcgary1]

Marks dtm was on the right track here mate just to the right of the brake servo  on the large stiff plastic pipe there are two vac pipes that connect here, check that the small pipes are still on the large pipe as this is where the heater controls get thier vac from. if the car has had some work done to the rear of the plenium then the ham fisted techi may have broken on of the small connecting pipes off.Also check that the small vac pipe is still connected to the HBV at the back of the plenium.  Forget the changing of the plugs and leads mate as these have sweet fa to do with the heater efficancy. That garage was just looking for unneeded work. Rip off merchants.

[feeutfo]

Yep, heater is a monster on the Omega!

As for your description....rough running and no heater.....rough running could well be a vac leak and much of the vent system is vac operated.

So, look for the large brake servo vac pipe that comes off the rear right of the plenum chamber and runs round the rear to the brake servo on the rear left of the bulk head.

Check this for damage.....particularly just after where it leaves the plenum as it can chafe on the airon pipe if a dodgy mechanic hasnot re-fitted the spacer to it.

ALLAAAAAN, DOT NOT SPEND ANY MONEY UNTIL YOU KNOW WHAT THE PROBLEM IS!

Sorry to shout mate, but Mark has given you the answer, what he doesnt know about Omega's aint worth knowing, if the wise one speaks we listen.... Well, usually. :-)

Before you do anything else check the vac pipes as suggested. Save your money and time, independent garages will as a rule give you a general diagnosis for your average car. They are clearly not familiar with the omega. As for dealers, just dont. Hth

[feeutfo]

have a look at the links in the thread below, they show pics of the system and pipe work Mark is talking about. If any of its broken, leaking, worn through, not connected, post up what you find and somebody will be able to help. There are breakers on here who can help.
http://www.omegaowners.com/forum/YaBB.pl?num=1233419513/11#11
 
Let us know how you get on, dont be shy to post up any issues. Hope this helps. :-)

[AllanGlasgow]

Hi guys,

Thanks for all the suggestions, finally got round to getting my head under the bonnet.

I checked all the vac pipes, and no leaks or pipes hanging off that I could see.

I managed to find what I think are the heater hoses (2 thick rubber hoses running through the bulkhead?). Took the car up and down the dual carriageway to get it up to temperature (still no heating), came back and had a feel. The top pipe was v. hot, the bottom pipe was fairly cool. Looking at the suggestions you guys gave me, I would suspect a blocked matrix? Can anyone confirm if this sounds right? If so, is there a step by step (with helpful pictures  ) on how to flush the matrix on the forum?!

In regard to the rough running, it seemed to be misfiring far less today than it was before. Is there any chance the misfiring is as a result of it being off the road for three months before I bought it, and the plugs or summit are just dirty?

[RobG]

Hi guys,

Thanks for all the suggestions, finally got round to getting my head under the bonnet.

I checked all the vac pipes, and no leaks or pipes hanging off that I could see.

I managed to find what I think are the heater hoses (2 thick rubber hoses running through the bulkhead?). Took the car up and down the dual carriageway to get it up to temperature (still no heating), came back and had a feel. The top pipe was v. hot, the bottom pipe was fairly cool. Looking at the suggestions you guys gave me, I would suspect a blocked matrix? Can anyone confirm if this sounds right? If so, is there a step by step (with helpful pictures  ) on how to flush the matrix on the forum?!

In regard to the rough running, it seemed to be misfiring far less today than it was before. Is there any chance the misfiring is as a result of it being off the road for three months before I bought it, and the plugs or summit are just dirty?

The heater pipes need to be disconnected (http://www.omegaowners.com/forum/YaBB.pl?num=1185891036) Then connect hose to bulkhead "stub" pipes (http://www.omegaowners.com/forum/YaBB.pl?num=1152565204) and flush through. If you`re going to flush matrix it would be an ideal time to do a thorough flush of the cooling system