Vacuum pump on 03 ?

[Jim Weed]

Can any one tell me if the Dodge 03 HD diesel has a vacuum pump ? My gooseneck trailer has vacuum over Hydraulic disc brakes , works great on my 96.

 

[Dean Upson]

No vacuum pump on the stock '03. You get one with the Jake brake.



Dean

 

[Jim Weed]

Gear or elect power?

Will the vacuum pump that comes with the 03 exhaust brake be gear or elect power ? Any links on detailed info on the 03 exhaust brake ? - - Thanks

 

[Dean Upson]

The pump is belt driven, you get a different fan belt. Here is a link to the Jacobs site and you can down load the pdf manual if you want.



Dean

 

[Dean Upson]

I did it again... . forgot the link in the last reply, sorry. Here it is http://www.jakebrake.com/content.php4?doc uid=73.





Dean

 

[Evan A. Beck]

THe '03 does have a vacuum pump. Its electric, very small, and located underhood on the passenger side of the truck. Interestingly, it is the SAME one Ford uses on the PSD-powered vehicles. Same electrical connector and everything. This pump, however, is very weak and cannot handle an exhaust brake. Thats why you have to install a more powerful unit when installing a brake on a Ford. Same will prove true on the '03 Ram.



I plan on going with an air-operated exhaust brake on my '04, which I'll be ordering as soon as they become available. Air-operated brakes seem to work better in most conditions, and typically have fewer problems. Plus, you get to have a readily available supply of air for various things, too! :-D

 

[Prairie Dog]

I like the idea of having an on board air source to Evan, Who makes this type?

 

[kaffine krazed]

What is the vacuum pump used for? The AC system is electric the did away with the front axle disconnect. What else uses vacuum?

 

[Mark@TST Products]

Per the 03 Ram shop manual, the electric vacuum pump is used on 03 Ram diesel automatic trucks to operate the cruise control servo. Manual transmission trucks do not have a vacuum pump as their cruise is all electronic within the ECM.

 

[kaffine krazed]

Thanks. I just wish Dodge had put an air compressor in place of the vacuum pump.