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Dear Steve, There should be a sticker on the under side of the hood or on the body of the vehicle under the hood that shows the vacuum diagram. If it's no longer there, then you will need a service manual or someone who has access to Mitchell 1 or Alldata. Usually you have to pay and subscribe to these services, but they should have a diagram. Lori Johnson

⟩ Answered on Aug 14th, 2007 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines

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