To find the vacuum lines, you'll need to:
1. Identify your engine: Check your vehicle's paperwork or the engine block itself for the displacement (e.g., 4.8L).
2. Consult a repair manual: A repair manual specific to your year, make, model, and engine is crucial. This manual will have diagrams showing the location of all vacuum lines and what they connect to (brake booster, distributor, emissions components, etc.). You can find these manuals online (often as PDFs) or at auto parts stores.
3. Look for the common areas: Vacuum lines typically connect to:
* Brake booster: A large canister often near the firewall.
* Manifold absolute pressure (MAP) sensor: Usually on the intake manifold.
* Distributor (if applicable): Older engines might have vacuum advance.
* Emissions components: Various valves and solenoids related to emissions control.
* Transmission: Some transmissions use vacuum for shifting.
4. Inspect the intake manifold: Many vacuum lines originate from ports on the intake manifold.
Without knowing the specific engine in your 2000 Silverado, I cannot give you precise locations. Using a repair manual is the only reliable way to identify the vacuum lines correctly. Incorrectly connecting or disconnecting vacuum lines can lead to serious drivability issues.
