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06/09/2021 12:11 am
Topic starter
I have a 2000 chevy impala 3.4 with over 300,000 miles on it I need a vacuum diagram if anyone has one I'd greatly appreciate it
what are you trying to do?
I have 2 lines that have vacuum but have no clue where they go one is on the fire wall and the other is going towards the transaxle
I have the haynes manual but it doesn't have the vacuum diagram in it
2 Answers
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06/09/2021 12:48 am
Oh wow your car has a lot of stuff on the vacuum system.
- HVAC
- EVAP
- Brake boost
- Air injection
- Fuel pressure regulator
- possibly transmission
There won't be just one diagram for it all. It's usually divided into subsections. I'll see what I can find ...
Sometimes it's printed on a sticker under the hood somewhere
Google was actually pretty helpful
https://www.2carpros.com/questions/oldsmobile-silhouette-1999-oldsmobile-silhouette-vacuum-digram
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06/09/2021 1:26 am
Found it. Here you go.
| (1) | To Rocker Arm Cover |
| (2) | EVAP Service Port |
| (3) | To EVAP Canister (At Rear of Vehicle) |
| (4) | Air Intake Duct |
| (5) | Throttle Body |
| (6) | PCV Valve |
| (7) | Fuel Pressure Regulator |
| (8) | To Transaxle |
| (9) | Intake Manifold |
| (10) | To Accessory |
| (11) | To Vacuum Brake Booster |
| (12) | MAP Sensor |
| (13) | EVAP Canister Purge Valve |