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Transmission downshifting [message #290101] Sun, 08 November 2015 07:57 Go to previous message
tgeiger is currently offline  tgeiger   United States
Messages: 518
Registered: February 2006
Location: kansas city
Karma:
Senior Member
I noticed coming back from camping last weekend my motorhome would downshift from 3rd to 2nd doing 50 mph and it wouldn't shift up to 3rd until I manually went down to 2nd and then back up to D and then it would kick up to 3rd. I've check the transmission fluid and it seems to be good level . I have noticed a hissing noise under the dash when I let off the brake. I have had trouble with mice in the coach and am wondering if those little s$&ts have chewed on something that has caused a vacuum issue? Anyone experience a hissing noise related to the brake peddle coming back up after use. It does stop hissing when peddle comes back up after I pressed on it.

Tom Geiger 76 Eleganza II KCMO
 
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