Evans Dash Air Nightmare
I'm a newbie to the RV world and would love some help dealing with a problem with the Evans Tempcon dash AC. The coach is a 2001 Monaco Knight on a Roadmaster chassis. I bought this RV knowing the d...
Forum Discussion
oldave wrote:
Well lets update your Understanding.
1. RV Motorhome makes do NOT utilize Dash Air from the Auto Industry(including Monaco). They are supplied by companies that specialize in aftermarket Dash Air systems for the Motorhome market. Been this way for over 40 years. The only exception was the original 1979 thru about 1985 Silver sided Chevy Chassis Airstream motorhomes Class A
2. ALL DIESEL Dash AC systems use a 12 volt vacumm pump to supply the needed power to move the Air Damper doors when the Motorhome has a Vacumm activated system.
3. Most modern Diesels/Gas in the past 10 years or less use a Electric motor activated Damper door system Like a Denso system. I believe all Evans/tempcon use Vacumm systems. So, If you have Evans/tempcon you have a Vacumm system. Doug
Ok maybe not , guess I could have worded it better but some
components are plain old auto parts store stuff available most places
I can't say for sure but have been told my dash air control ( knobs etc ) are Ford .
As far as the vacuum pumps you are not correct when stating that they
are all elect . Monaco used an air through a venturi vacuum gen at
one time
Google will explain how it works . I located a picture of one on
a 2000 Windsor but couldn't post on here .
Maybe this link will work if anyone wants to see one .
http://www.irv2.com/forums/f115/vac-air-elec-box-above-generator-2000-windsor-403110.html
yes, I got the pic. From your original description I thought you were stating that by driving and the incoming fresh air operated some type of vacumm system. Now, I see the Chassis AIR system supplies the power to run the vacumm motor system. It still has 2- 12 volt wires, which I have no idea what they do unless they shut the vacumm motor on and off from a pressure switch like the 12 volt Electric ones do. THAT type system was only used on the Hi line Diesel pushers back then. Yes, some of the Dash components look like either Chevy/Ford or OLD Chrysler systems. But Evans/tempcon sells those parts if you cannot find them locally. Doug
