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Old 03-30-2000, 10:07 PM
stevebfl stevebfl is offline
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
The diesel used a vacuum proportioning valve for trans control. The vacuum was vented through a black line into the dash area. it did this so it wouldn't pull moisture or other trash in from under the hood.

It wasn't hooked to anything.

Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician
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