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Serious Vacuum leak

JSpence

Member
Joined
October 12, 2007
Messages
17
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City, State
Oak Harbor, WA
Year, Model & Trim Level
1991 Explorer XLT
I have several vacuum lines that are in bad shape. My haynes repair manual doesn't give me any vacuum line layout. Any information and links would be great.
 



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Joe Dirt

Explorer Addict
Joined
October 4, 2007
Messages
13,340
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Year, Model & Trim Level
07 Camry
I've not seen vac layout diagrams. Couldn't you replace them one at a time as you take them off and then you wouldn't need a layout? I'd say the only place it may be is in the factory service manuals.
 






dogfriend

Human-Animal Hybrid
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City, State
Carmichael, CA
Year, Model & Trim Level
'97 Sport 4x4

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MrShorty

Explorer Addict
Joined
December 27, 2001
Messages
5,078
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City, State
Spanish Fork, UT
Year, Model & Trim Level
92 XLT and '87 Bronco II
I know I posted this list a while ago. Here's what's on my '92, and your '91 should be similar. You should have vacuum lines going to:

1) Automatic transmission (if equipped).
2) Cruise control (if equipped)
3) brake booster
4) fuel pressure regulator
5) air filter housing
6) vacuum reservoir and HVAC system (1-6 coming off of vacuum tree at rear of intake)
7) PCV valve (separate nipple)
8) EVAP system (likely off of throttle body)
 






JSpence

Member
Joined
October 12, 2007
Messages
17
Reaction score
0
City, State
Oak Harbor, WA
Year, Model & Trim Level
1991 Explorer XLT
Thanks for the replies it should help a bunch.
 






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