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Old 02-11-2009, 03:43 AM   #1
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Vacuum Source

I have an 02 w-22 where oh where is the source for the vacumn for the dash heater and a/c. I suspect I have a leak somewhere. Is there a hose routing diagram in existence? Thanks in advance for your assistance. Marv
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Old 02-11-2009, 03:49 AM   #2
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Quote:
Originally posted by Carvin Marvin:
I have an 02 w-22 where oh where is the source for the vacuum for the dash heater and a/c. I suspect I have a leak somewhere. Is there a hose routing diagram in existence? Thanks in advance for your assistance. Marv
Marv, Other than a 35 foot long motorhome in your profile, the question we would like to ask you is; What is the year, make and model.

On a Winnebago product it is entirely possible that one of the vacuum hoses came off the back of the switch. Check to see if those are all seated.
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Old 02-11-2009, 05:43 AM   #3
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Well. As others have said, more info needed

However since this is a workhorse forum.. and Workhorse GENERALLY does things much like GM

GM usually taps dash vacuum off at the brake, booster, vacuum canister check valve

This is a plastic plug in the booster body

BIG hose to engine manifold
Small to dash


Unless.... Of course..... They did something entierly different
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Old 02-11-2009, 08:12 AM   #4
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Im not sure yours is like mine but I had some vac leaks. If yours is like mine there is a round ball like plastic piece on drivers side under hood. I had 2 hoses that were defected and I replaced them(green and blue hose). All problems fixed. The cracks were hard to see but were dry rotten.
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Old 02-11-2009, 01:01 PM   #5
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Picture of vacuum reservoir.
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Old 02-11-2009, 01:24 PM   #6
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Quote:
Originally posted by Carvin Marvin:
Is there a hose routing diagram in existence? Thanks in advance for your assistance. Marv


-Tom
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Old 02-12-2009, 02:22 AM   #7
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Thanks for the responses. I have repeatedly attempted to update/correct my profile with no success. It's an 02 W-22 Southwind R35. I'll check out the hoses for cracks now that I know where to look. Again Thanks for the assistance. Marv
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Old 02-12-2009, 02:47 AM   #8
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Quote:
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I have repeatedly attempted to update/correct my profile with no success.
Marv, There's an apply button all the way at the bottom of the page. Click on that to save your changes.
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Old 02-14-2009, 04:33 AM   #9
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I'm not entirely sure what Tom posted, but this is the diagram for the Evans Tempcon system in my Newmar Scottsdale/W22:

Evans Tempcon Cable/Electric Valve Vacuum Diagram
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