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81 & 85 Turbo differences
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02-23-2005, 11:21 PM
Harold
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Join Date: Dec 2004
Location: Sequim WA
Posts: 23
I have an 85 300 SD. I think you are referring to the Air recirculation valve on the front of the turbo. The ARV and the EGR have small vacuum lines running to both for emission purposes. Both according to several threads can be bypassed.
Harold
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