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Small vacuum hose question

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Old 04-17-2005 | 06:41 PM
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Default Small vacuum hose question

Does anyone have a picture or diagram of where the small vacuum hoses that leave the brake booster attach? Also, I have a vacuum line that leaves from the top of the coolant fill tank, but I have no idea where it attaches. Thanks!!!!
Old 04-17-2005 | 08:54 PM
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The hose on the coolant tank is the overflow hose. It should just exit near the bottom of the car. That way in case of an overflow you won't have coolant all over the engine compartment. The small hose off of the booster goes to the vac resivour behind the drivers side fender ( I think )
Old 04-17-2005 | 09:30 PM
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Here are a couple of pictures that may help - though these are off a US 1980.

First is the hose diagram:



Second is a picture of the hoses around the booster. The main large hose heads to the top of the throttle housing. The small tube from the white T connector drops down through a check valve to a 4 way connector (which is really a T in my case because one of them is capped) which you can see by the check valve. From there one side goes off to the Tempostat (cruise) and the other from memory goes to the to the base of the throttle body.



Finally, I had to show off the new hoodliner

Old 04-18-2005 | 03:22 AM
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Thanks Jim & Marc. So then #1 is capped off, #2 goes to the small brake booster lines, #3 goes to the check valve and brake/intake line, where does #4 go? Does that go to the vacuum canister in the driver's side wheel well?
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Old 04-18-2005 | 10:07 AM
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The lines in question are:
-From booster valve to small black/blue check valve.
- From check valve to rubber four-way connector.
- Four-way:
- input from check valve.
- line to fender for vacuum reserve tank and cruise control.
- line to firewall - this is HVAC system feed
- blocked off.



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