Vacuum. Is it On. - Land Rovers Only

vonbrandt · 10-23-2009, 04:12 PM

I know it should be on. 1994 Disco, no cats.

I need help. Because I do not believe my vacuum is functioning. I have a '94 D1 and I bought a can of seafoam to try and I am not getting anything off of the nipple on top the throttle body area... Maybe I just need a diagram but I can not figure this out. How can I check my vacuum...

ihscouts · 10-23-2009, 04:54 PM

Is the engine running when you try? Secondly the line might be blocked. Have your tried the vacuum line from the brake booster yet?

Disco Mike · 10-24-2009, 08:32 AM

If your engine runs, there has to be vacuum, as mentioned check all your hoses for leaks.
Also, if you hd nod no vacuum, your power brakes wouldn't work.

vonbrandt · 10-26-2009, 02:26 PM

I assumed that the vacuum must be working as the engine itself requires it, but I was trying to read up on the pcv. I feel really uneducated on this whole 'hook up a hose to the can of sea foam' deal right now. That is when I started up my car and pulled the hose coming vertically off of the plenum chamber upper... So does the engine need to warm up, should their be a vacuum off of this line on idle...