[Image of vacuum hose diagram]
Notes:
* The vacuum hose diagram for the 1986 Chevy Silverado C20 350 engine is shown in the image above.
* The vacuum hoses are color-coded to help you identify them.
* The vacuum hoses connect various components of the engine, such as the carburetor, fuel injector, and emissions control system.
* If a vacuum hose is damaged or disconnected, it can cause the engine to run poorly or stall.
* If you need to replace a vacuum hose, be sure to use the correct size and type of hose.
Here is a list of the vacuum hoses and their colors:
* Black: Transmission vacuum modulator
* Blue: EGR vacuum modulator
* Green: PCV valve
* Orange: Fuel injector vacuum solenoid
* Red: Brake booster vacuum line
* Yellow: Air conditioning vacuum actuator
If you have any questions about the vacuum hose diagram, please consult a qualified mechanic.
