1986 Chevy Silverado vacume digram

Tiny
NUNOIT
  • MEMBER
  • 1986 CHEVROLET SILVERADO
Engine Performance problem
1986 Chevy Silverado V8 Four Wheel Drive Automatic

i have a 1986 suburban silverado there is no vacume digram under the hood. I want to hook the way it is supposed to go(cali or fed). 350 moter some vacum is connedted not all of it. From what I have found there is no ecm no cat(never was), 4 barrel carb egr ok engin is jasper air cleaner only has 1 hose connection for hot air moter. All vacum digrams welcome also proper air pump digram needed. Thanks in advance joe
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Tuesday, November 3rd, 2009 AT 3:45 PM

7 Replies

Tiny
BLUELIGHTNIN6
  • EXPERT
What size engine? 5.0L, 5.7L etc. Gasoline or diesel?
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Tuesday, November 3rd, 2009 AT 3:52 PM
Tiny
JDL
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http://www.2carpros.com/forum/automotive_pictures/170934_86_chevy_truck_1.jpg



Don't know if the above will work for you or not? Welcome to the forum.
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Tuesday, November 3rd, 2009 AT 3:57 PM
Tiny
NUNOIT
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Just a fue? What is efe valve (heat riser), dtstr tvs (?) And is hose that connects to air cleaner (between vapor can and decel vav) just a bleed for vapor canianster, other than that I think I can make work. There is some weard valve that connects to vapor canister wonder what it is, has 4 ports 2 for vapor 2 for vac ill see if I can pix to post. Also carb has bowl vent where does it connect. (Pluged now) once again thanks joe
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Wednesday, November 4th, 2009 AT 8:23 AM
Tiny
JDL
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I believe tvs is thermal vacuum switch and efe is early fuel evaporation.
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Wednesday, November 4th, 2009 AT 10:12 AM
Tiny
NUNOIT
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5.7 gas
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Friday, November 13th, 2009 AT 8:18 PM
Tiny
NUNOIT
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Do you no what the rpo code for that digram
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Wednesday, November 25th, 2009 AT 5:50 PM
Tiny
JDL
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Hi, the autozone site has free diagrams. You have to register your vehicle, it's free. Then click on repair info. I believe the vav diagrams is under the emissions link. Wiring diagrams under chassis link.
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Thursday, November 26th, 2009 AT 9:36 AM

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