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Old 10-16-2018, 04:39 PM   #1
Winnebago Camper
Join Date: Oct 2018
Posts: 17
defroster only

just purchased 2000 adventurer 35 u. was told it had a vacuum leak causing all air to be directed to defroster. i have already checked the cannister above the oil dip stick and it is connected. any ideas where to start looking for the issue?

thanks in advance m bruce
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Old 10-16-2018, 10:23 PM   #2
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You may have to check every inch of vacuum tubing for cracking. I have an older Chrysler minivan and quite a bit of the vacuum tubing is hard plastic and only small sections are rubber tubing. While trying to track down the cause of rough idling, I discovered a crack in one of the hard plastic lines. It was in an area where I have to reach into during routine maintenance. I cut out the cracked section and replaced it with a piece of appropriately sized rubber tubing. No more rough idle. Don't forget to check any fittings in those vacuum lines too.
2016 Minnie Winnie 27Q on a 2015 Ford E450 chassis. Retired U.S. Air Force. Living in Anchorage, Alaska
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