Diesels--since they have constantly wide-open throttle and hence no vacuum--require a vacuum pump to provide vacuum for things like power brake boost and various solenoids including, it appears, fuel shutoff.
http://dieselgiant.com/mercedesvacuumtroubleshooting.htm
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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles
Last edited by lkchris; 02-24-2006 at 03:17 PM.
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