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[deadline]

2002 OPEL Omega 2.5DTI. Few months ago I had a little accident and the turbo stopped working. It was a broken vacuum hose which the guys from the auto service I went isolated and told me it's nothing to do with the engine. They didn't know what it's for because they do engines only. So I followed the hose and from the engine bay it goes in the right fender (the car is with left hand steering wheel) and than inside behind the dashboard somewhere. I have no idea what it's for, but everything works fine, though it's not connected on the engine side. what can this be?
It's not the recirc valve, it works.
Thanks

[Andy B]

parts of your heater system are vacuum opperated eg recirc etc which is what the vacuum pipe is for. 

[deadline]

I thought so, but everything works as it did before, and as it's supposed to 

[Andy B]

I thought so, but everything works as it did before, and as it's supposed to 

I'm sure someone who knows a little more about it will advise 

[sierrapaul]

does anybody know anymore then?

[Boditza]

this is it.. all you have to do is find out where everything goes on your car and figure out where that vacuum goes. From what i figured out it should be the addon heater vacuum hose and since you don't have one its left blank



p.s. this is only the engine compartiment

[deadline]

pretty much explained in the picture.

[Boditza]

if you posted a pic then try again on imageshack or any other site because what you posted isn't loading... from what i can see its a site from bulgaria so its probably local

[deadline]

this is it.. all you have to do is find out where everything goes on your car and figure out where that vacuum goes. From what i figured out it should be the addon heater vacuum hose and since you don't have one its left blank



p.s. this is only the engine compartiment

Thank you very much. your diagram shows that this hose goes to the vacuum reservoir (15). the thing I didn't know what it is is the vacuum pump (silly me). so what's that vacuum reservoir needed for? i mean I know what it does, but what are the consequences from isolating it?

[Andy B]

....
Thank you very much. your diagram shows that this hose goes to the vacuum reservoir (15). the thing I didn't know what it is is the vacuum pump (silly me). so what's that vacuum reservoir needed for? i mean I know what it does, but what are the consequences from isolating it?

apparently early cars just have the one reservoir, later cars have two - one by the pollen filter & the other at the very front of the car by the radiator. I believe it's to help maintain vacuum for the multirams when you're 'pressing on' ie when there is reduced vacuum in the inlet manifold.

[deadline]

I'm saying BS. it's the vacuum vessel, according to the diagram. i'm sure it is. the vacuum lines are exactly like in my engine bay. so, what's the vacuum vessel for?

[Andy B]

I'm saying BS. it's the vacuum vessel, according to the diagram. i'm sure it is. the vacuum lines are exactly like in my engine bay. so, what's the vacuum vessel for?

to help hold a vacuum ..... as above. 

[deadline]

and what is the practical result when it's isolated?

[Andy B]

and what is the practical result when it's isolated?

When your engine is idling you get more vacuum than when you have your car is flat out on the motorway. The multirams work using vacuum as do parts of the heater controls (face/floor/dash)
So when your car is idling your multirams have the full amount of vacuum to operate them and enough to sort the heater out. When you're flat out, due to the reduction of vacuum, the multirams don't get the same amount vacuum to move the actuator so, the reservoir stores some of that high vacuum to help move heater controls & multirams when you're driving at high(er) speed. 

[deadline]

thanks for the super fast and pro responses!  [smiley=beer.gif]