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Old 05-15-2006, 03:42 PM
SD Blue SD Blue is offline
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Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,186
The EGR valve should be closed with no vacuum signal. However, it is a good idea to remove and check for carbon build-up on the valve seat that would prevent it from closing all the way.

84 300SD 350K+ miles ( Blue Belle )
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