Engine/Transmission (1994 - 1998) Vacuum Brakes

[CMorrow]

Any one put a Aux vacuum reservoir in line with there factory unit to assist, say when your in freq stop and go? Just a thought. I've got good vac pressure but anyone with a vac assist system knows what I'm talking about. It's why DC went over to Straight Hydralics in their later models.



Thanks.

 

[wcjp]

I zip tied every vacuum connection including the front axle and transfer case. I also overfilled the brake reservoir slightly. A little bit of brake fluid spilled when putting the cover back on. Now the brakes work great and I have excellent pedal the next day. I still can't go two days of sitting without losing vacuum.

 

[vssman]

I haven't done it to my 96 but I did do it to my 64 galaxie I used to have (big cam = low vacuum). It worked in that application so I can't see why it wouldn't work for you. Just make sure you have a check valve between the vacuum source and the tank.

 

[illflem]

I've installed vacuum tanks on a couple Hondas to run aftermarket cruise controls. Hondas have slow vacuum.

Dodge sells vacuum tank setups for our trucks but wants over $100, I paid about $15 from the auto parts.

 

[Jammar9082]

Aux Vacuum Tank

I made and installed an Aux. tank and it seems to work OK. It is made out of schedule 40 plastic pipe six inches in diameter by about 18 inches long with two end caps glued on. I tapped the end cap for a barbed fitting for the vacuum line. The tank is carried on two angled braces bolted to existing holes in the left frame rail under the driver's door. The new vacuum line runs forward along the frame rail to the OEM vacuum line going to the brake assist where I inserted a "T" in the line.



It has been on the truck about two months and 4000 miles via mountain passes in Washington, Oregon and California with no apparent problems nor shortage of vacuum pulling a fifth wheel trailer.