Vacuum canister

[Delk]

Does anyone know what this vacuum canister is for or where it should be connected? The hoses were loose and I am not sure where they were to go. Im not even sure if someone didnt disconnect it in the past.

Its under the intake manifold between the starter and alternator.

 

[DomiMik]

I'm pretty sure that's the activated charcoal filter that prevents a vacuum in your fuel tank.

Solution to Fuel Gauge/Sender problem

Has anyone considered changing the fuel cap to a vented one in order to avoid creating a vacuum in the fuel tank which collapses the tank wall and can cause the notorious damage the fuel sender?

zroadster.org

 

[Delk]

Will have a better look this weekend. There is a solenoid under the forward side of the manifold that I think connects to the fuel tank.

 

[Delk]

I think the charcoal canister is in the rear on the left side.

 

[DomiMik]

Depends on your car @Delk
As far as I know, pre facelift -> it sits in the engine bay, facelift -> in the rear left side.

 

[NZ00Z3]

Do you have one of those butterflies on the exhaust tail pipe? Don't know for sure, but it could have something to do with it.

 

[Althulas]

I think you hit the nail on the head Murray.

01-05 BMW E46 M56 M54 EXHAUST VACUUM TANK CONTAINER CAN 11.78 1 740 207 PA 66 | eBay

<p>01-05 BMW E46 M56 M54 EXHAUST VACUUM TANK CONTAINER CAN 11.78 1 740 207 PA 66. Condition is Used.</p>

www.ebay.co.uk

 

[Delk]

Not sure but that would make sense. The car was fitted with an aftermarket quad exhaust when I got it. There are some wires and bits near the rear bumper.

The car is a late 98 with the M52tub28. Not sure if they had exhaust flaps.

 

[gookah]

yes my M52TUB28 does have one, and that is the canister for the exhaust flap,
There should be a small hose under the rear bumper that needs to be blanked off otherwise you have a vacuum leak

 

[Delk]

The whole thing will go then. I'm cleaning up as much as I can while it's apart over the winter.

 

[Lee]

I just removed one of these from a car I had in. We found another little valve solenoid in the boot on the left, this then fed the valve on the exhaust.