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vacuum line diagrams 1991 grand prix se
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Guest
Anonymous Poster
ct1sunshine@aol.com
Jan 20, 2007, 1:35 PM
Post #1 of 2
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vacuum line diagrams 1991 grand prix se
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I need diagram of vacuum lines that go to map sensor in 1991 grand prix se 
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DanD
Veteran
/ Moderator
Jan 20, 2007, 2:00 PM
Post #2 of 2
(2095 views)
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Re: vacuum line diagrams 1991 grand prix se
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A vacuum diagram should be on the VECI (vehicle emission control information) decal; after saying that it’s likely missing due to age?
Find a manifold vacuum source to connect the MAP too; manifold vacuum it present all the times idling, part throttle; the only momentary loss of vacuum will be felt if you crack the throttle wide open.
Dan.
Canadian "EH"
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