Vacuum ports for air horns

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Can anyone tell me where the vavuum ports are located on the Cummins B engine?? Seens as if I seen in a post that they were located somewhere behind the brake booster. Just hung a set of Hadley twins on the bracket behind the bumper on the passenger side(same bracket the electeic horns are hung on the drivers side. I have a vacuum operated compressor and will need a vacuum port to connect it to. Any help would be appreciated!!
I do this all the time - I forget to say that the truck is a 94 Dodge 3500 Dually.

[This message has been edited by Bob Ellithorpe (edited 10-03-2000). ]

 

[Archive]

Bill,

Look right in front of your power steering pump. There is a hose coming out of the side of the vacuum pump. The vacuum pump is gear driven and the power steering pump bolts to the back of it.

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Joe George
Eureka, CA

'95 2500 CC auto 4X4,3. 54,Combo EGT/boost guage,custom switch panel,PacBrake,TST #5,BD valve body,Automatic motorhome steps on both sides,Foldacover hard bed cover,Cummins chrome kit,Black steel grill guard,Front hitch receiver