i recently removed cam cover, intake mani and throttle body to refurb and paint ect, there is a short thin vacuum hose that comes off the throttle body that has really strong suction i think it had a stopper type thing on it when i had it on the bench but it now does not.. i must of lost it, what does this hose do? do i need to replace the correct "stopper" or can i just be taped up ect?
Rotta.
m40 vacuum hose help
Moderator: martauto
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rotta
- E30 Zone Newbie
- Posts: 174
- Joined: Tue Jun 13, 2006 11:00 pm
just to add when the hose is allowed to suck the idle is terrible as soon as i cover the little hole on the end of the hose the idle is fine,
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rotta
- E30 Zone Newbie
- Posts: 174
- Joined: Tue Jun 13, 2006 11:00 pm
more research reveals that it had a vacuum cap plug on it so ill get one and seal it back up again.
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Brianmoooore
- E30 Zone Team Member
- Posts: 49360
- Joined: Mon Jan 10, 2005 11:00 pm
It's the hose that would go to a solenoid valve to a carbon canister to the fuel tank vent pipe, if your car had been fitted with emissions equipment. It's not strictly necessary to use the correct BMW part, but the end of the pipe must be blocked off.
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rotta
- E30 Zone Newbie
- Posts: 174
- Joined: Tue Jun 13, 2006 11:00 pm
cheers brian much appreciated ill get it stuffed with something 