Hi All,

 

My exhaust brake has been loosing it's verve so I took the truck to Banks Engineering, well, because they are not too far from here and thought it would be fun to visit the mother ship.  It was very fun!!! They gave me a tour of the campus, except the military work section, because then they would have to kill me. They are super nice and it's very impressive operation. But I digress.

 

So they told me the diaphragm is good on the exhaust brake can, that was my theory, and the Banks system tested out from the manufacturer. They didn't even charge me for that inspection. Super nice people!

 

What they told me is my vacuum pump is not providing enough vacuum, which is what is making my ebrake work.

 

I don't have time to deal with this myself so I have a shop who will be looking at it on Monday.

 

Is there anything else we should be looking at that could cause the deficiency in vacuum?

 

If the pump needs to be replaced can anyone recommend a brand of replacement part?

 

Seems the Dorman parts don't really last and I'm not too sure about the Cardone parts. The Mopar parts are ridiculously expensive $1,200 or something like that. 

 

Any pointers are welcome!

10 minutes ago, Tractorman said:

 

That sounds more like it since you are located near sea level.  The vanes in those pumps are lubed with a dedicated engine oil line.  This is why those vacuum pumps are so efficient and why they rarely fail.

 

Good to hear you have it fixed and the solution was simple.

 

- John

Fortunately corrosion is not a massive issue here. My truck has zero rust. It was started its life in Oceanside, CA was in Kingman Arizona for a bit and now back to Cali.