vacuum pump location

[Dave Biro]

Where is the vacuum pump on the National RV 2001 Marlin diesel motor home?
I have looked under the dash but cannot see it. Do not know if it is worn out or if it is just not getting power.
Cannot get any help from dealers around here. Help
Dave

[MSHappyCampers]

Hi Dave! Welcome to IRV2! We're sure glad you joined us!

Sorry I can't answer your question! Keep her between the ditches!

Good luck, happy trails, and God bless!

[chboone]

Awhile back another National owner couldn't find the vacuum pump. Another National owner posted a picture of the vacuum pump. Don't recall where is was, but don't think it was under the dash. I searched for the post but couldn't find it.

[bldrbob]

My 2000 Tradewinds has the pump mounted on the firewall outside just out of reach unless you are doublejointed.

[Skip426]

Because the pumps are noisy when operating they are most often on the outside of the firewall , along with the vacuum reservoir. Probably within a foot or so of each other.
I recall the post , chboone , mentioned and will see if I can track it down.

BTW: Welcome to iRV2.

[Craigaz]

The vacuum pump on my Tropi-cal is mounted to the outer side of the firewall towards the drivers side.

Hope this helps.
Craig

[Jim_HiTek]

Mine was on an inside wall of the passenger side frame rail within a few feet of the engine in back. The vacuum pump on my Bounder was used for both the comfort controls on the dash, and supplied the vacuum for the cruise control system. Took me forever to find it. I knew it was bad because the book talked about the vacuum system and what it controlled. After removing it, it took quite a bit of time to find a generic replacement/