weird "hissing" sound coming from engine bay (with video)

[mikeyisfresh]

I noticed this hissing sound today and was able to pinpoint the location of the sound.... What should I do? the sound goes away when I plug a tube onto the piece.

here's a video I took of it today:
http://www.youtube.com/watch?v=CyiwYbWxe2A

 

[young_]

Video's not working.

 

[mikeyisfresh]

sorry, the youtube embed didnt work so I just changed it to a link.

 

[young_]

Looks like you're missing a vacuum line. Try and look online (or under your hood) and look for a vacuum routing diagram. There should be a hose that goes there, and to somewhere else.

 

[RonJ]

That's the cruise control vacuum tank. You're missing a hose (or it's disconnected) that runs from the vacuum tank to the cruise control actuator assembly near the power steering fluid reservoir.

 

[young_]

That's the cruise control vacuum tank. You're missing a hose (or it's disconnected) that runs from the vacuum tank to the cruise control actuator assembly near the power steering fluid reservoir.

See, I ALMOST got it right. lol Just need to work on my parts knowledge

 

[kozy6871]

What RonJ said. No cruise control?

 

[blknpurple]

Damn you Ron and your immense knowledge!!!

 

[mikeyisfresh]

That's the cruise control vacuum tank. You're missing a hose (or it's disconnected) that runs from the vacuum tank to the cruise control actuator assembly near the power steering fluid reservoir.

yeah I found a hose in that general area, it's a single house with a coupler that goes into two hoses.... would any info on this be in the owners manual? I have one I've downloaded that seems to be accurate so far for EM1s.

a friend of mine told me just to take the hose off the back of the intake manifold and put a vacuum line cap on it and just not worry about it...

Thanks for the great info, man! and also, thanks to everyone else for contributing.

 

[RonJ]

If you want cruise control to work, reconnect the hose to the vacuum tank.

 

[mikeyisfresh]

I don't even think I have the actuator under my hood.... I honestly could do without cruise control, if needed, although it's nice on long trips... let me go check if I have that part.

 

[mikeyisfresh]

like I suspected, it has been removed.... oh well, no big issue. would there be a problem with just capping that output on the intake manifold? my car seems to idle at lower RPMs if I block the vacuum tank thingy.

 

[RonJ]

l...would there be a problem with just capping that output on the intake manifold?

This^ is fine and your best option.

 

[mikeyisfresh]

I do have a box full of parts that he has removed, maybe the actuator is in there. I'll have to look tomorrow. I also need to figure out how to re-install the windshield washer pump, because it's aggravating driving with a dirty windshield. lol


again, RonJ, thanks so much for your help.

 

[RonJ]

I also need to figure out how to re-install the windshield washer pump, because it's aggravating driving with a dirty windshield. lol