low vacum.......

[Sash]

hey guys,I am experience a low vacuum in my system,I know that the system hold a vacuum I don't have a lick,passable bad pump,anyone know any good place where can I get new pump or rebuild kit,or give me any suggestions related to the problem....
thanks

[running-snail]

Hey Sash -

Hope you're not getting too much snow over on the East side - did you measure your vacuum at the line between the vacuum pump and brake booster? How much are you getting?

Do you still have a shut-off problem?

[Sash]

Originally Posted by running-snail

Hey Sash -

Hope you're not getting too much snow over on the East side - did you measure your vacuum at the line between the vacuum pump and brake booster? How much are you getting?

Do you still have a shut-off problem?

yea there is a plenty of snow over here still coming down like crazy to,no I haven't check that yet,I need to buy a vac...gage......
YES, SHE STILL IS FORCE TO SHOT DOWN ON E-STOP UNDER THE HOOD

[katchung]

First step would be to test the pump. If there's no pull, you have several options. 1. Buy a rebuild kit..I'm sure mercedes shop sells them...or maybe try dieselgiant.com or 2. buy and install new pump. But first test your pump...buy a vacuum guage at autozone...cheap. It takes 5 mins.

[bulletproofair]

trace the lines to see if you can find reason your car has low vacuum. I'm only assuming you know its low because vacuum-powered accesories aren't functioning properly? I'm not presently able to think of another way to know if you aren't at proper vacuum without a guage....

anyway like someone else said as soon as you test the right places you'll know exactly what to do as far as what you have to replace. Its just a matter of you getting under your hood and going through the process.

Check your rubber cap on the modulator valve on the tranny (driver's side) to see if it's in good condition as some vacuum may be escaping from a cracked cap. Go through and make sure you have dashpots in the right places by using this forum to get at the vacuum diagrams. They're self-explanitory if you have some common sense. Obviously check the 3-way\4-way "splitters" to make sure the rubber is still good.


Also if you have to shut your car off under the hood it could just be a simple vacuum connection problem. It doesn't mean that your vacuum is low.

Good Luck.

[Sash]

thanks for the advise guys....

[Sash]

I check the pump almost she don't pull at all,very litle vacuum she produses....
wath is cousing pump to go bad,and how dificuld is to rebuild it or changet,every imput is very welcome......
thanks