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Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 15777
Experience:  Have owned a repair shop for 25 yrs.
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1995 chevy lumina 3.1 liter vaccum leak somewhere

Customer Question

1995 chevy lumina 3.1 liter vaccum leak somewhere
Submitted: 7 years ago.
Category: Chevy
Expert:  Tim's Auto Repair replied 7 years ago.

hi

this should help you..please print

thanks

System Diagram

 

Emission Hose Routing

LEGEND
(1) To EVAP Canister (at rear of vehicle)
(2) EVAP Vacuum Switch
(3) EVAP Canister Purge Valve
(4) To Rocker Arm Cover
(5) Air Intake Duct
(6) Throttle Body

(7) PCV Valve
(8) Fuel Pressure Regulator
(9) To Transaxle
(10) Intake Manifold
(11) To Accessory
(12) To Vacuum Brake Booster
(13) MAP Sensor

 

Evaporative Emissions System
Emission Control Systems
icon_note_blank.gif EVAP System
Heating and Air Conditioning
Vacuum and Vapor Hose Diagrams
icon_note_blank.gif Air Delivery & Temperature Control - Dual Zone (CJ2)
icon_note_blank.gif Notes Air Delivery & Temperature Control - Dual Zone (CJ3)
Service and Repair

 

Canister Location

REMOVE OR DISCONNECT

 

  1. Access cover at left rear wheel well.
  2. Hoses from canister. Mark hoses to install on new canister.
  3. Canister.

INSTALL OR CONNECT

  1. Canister.
  2. Hoses. Make sure connections are correct.
  3. Access cover.
Customer: replied 7 years ago.
I have already seen the diagrams and they did not help but when i had the air conditioner on it only blows out of the defroster and the floor when you accelerate then when you let off the gas it blows out of the front vents
Expert:  Tim's Auto Repair replied 7 years ago.

yes,,this sounds like a vacuum leak....you may want to spray carb cleaner around the intake..it may be leaking...also you may want to remove and clean the egr valve,,it may be built up with carbon,causeing a vacuum leak from the exhaust

thanks

Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 15777
Experience: Have owned a repair shop for 25 yrs.
Tim's Auto Repair and 6 other Chevy Specialists are ready to help you
Customer: replied 7 years ago.
I just need to know where that line tees off to because that is causing the leak and is there a such thing as a vaccum canister i know there is an evap canister are they the same I read somewhere there is vaccum canister under the lf headlight i looked there and did not see anything but the broXXXXX XXXXXne looks to have gone somewhere in that direction. fyi the line is totally gone.
Expert:  cartech replied 7 years ago.
there is a vacum resevoir on the lower left front splash sheild i will post a pic
Expert:  cartech replied 7 years ago.

graphic

 

im not sure i understand i was the one that answered the question and got you the info but tim got the accept and he opted out of helping