rooster
somewhere in the Ocooch
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Joined: 12/13/2000
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Had alternator repaired on the road, tech damaged A/C hose, had that repaired, now the vacuum motor that controls dash vent controls no longer works. Unit is 99 National Tradewinds, Freightliner chassis.
any suggestions?
Tony & Cam
1999 Tradewinds 7371
2001 Cherokee
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teddyu
Enfield, Ct
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I'd check in the area where your heavy handed tech was. He/she could have dislodged a vacuum line that goes to or come from an accumulator. Jusy my two cents...
Ted & Carmella in the DreamCatcher a
2008 Challenger 371PE on F53 w/ 2010 Cobalt
R'V there yet?
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fla-gypsy
North Florida
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Vacuum line was knocked loose or damaged. Hunting it down can sometimes take some time.
09 SuperDuty Crew Cab 6.8L/4.10(The Black Pearl)
06 Keystone Hornet 29 RLS/(The Cracker Cabana)
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N8GS
West Michigan
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I would think that it is a belt driven unit so it should be hanging on the engine just like the alternator or A/C pump. As said by someone else a line may have come off or gotten kinked. If it is DC powered then it could be anywhere.
Ham radio 73's from Gale N8GS
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acker1
fulltimer
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This is what mine looks like:
37'--'98 Endeavor
toad--'05 Crewcab GMC
Viet Vet '65, Ia Drang Valley survivor (We Were Soldiers)
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www.4ezdaz.com Same site, different URL
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rooster
somewhere in the Ocooch
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Thanks for the answers, but, the coach is diesel, there is no engine vacuum. It is supplied by a vacuum pump, which i could hear running in the past. Now I don't hear it anymore. Not knowing what it even looks like, or where it is located make diagnoses tricky. There must be an electrical connection somewhere, but I don't have a clue.
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rooster
somewhere in the Ocooch
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Acker1,
Thanks a million. I know where that is, now I can at least try something. Thanks again!!
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mchero
Concord, NH
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Thats a great little vacuum pump! I have one on my 93 Pace Arrow. Note the black & red wires, they are connected to a vacuum switch. These vacuum pumps "should" shut down when proper vacuum is reached. Other, more expensive vacuum pumps I have seen stay on as long as the ignition switch is on. They tend to wear out rather fast & expensive to replace.
Robert McHenry
Concord, NH.
1993 Fleetwood 36' Pace Arrow
Cummins 8.3l Turbo 300hp (uprated)
Allison 3060 Trans
2005 Jeep Grand Cherokee
http://dieselrvowners.com/forum/index.php
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kneal44
EAST CENTRAL TEXAS
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that pump ia a HELSA PUMP. TEST BY putting directly 12 volts to pump. to make sure it runs. then if it does search for vacuum switch. if these are not working . you can get another on ebay. search for cruise pump. i got mine for $20 delivered.
btw the pump when running makes a noise... a low frequency buzz. you will know when it works.
when u play in the sand .... you can get stuck
9-24-08 corpus christi padre island texas. wrecker had to haul me out!
'92 dp 5.9 cummins 190 hp....8mpg yuck!
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