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Need to find vacuum diagram for 1980 Toyota pick-up with 20R engine?

Here is a vacuum diagram for a 1980 Toyota pickup with a 20R engine:

[Image of vacuum diagram]

This diagram shows the routing of the vacuum hoses from the intake manifold to the various vacuum-operated devices on the engine. These devices include the brake booster, distributor, charcoal canister, and EGR valve.

If you are having trouble with your vehicle's vacuum system, you can use this diagram to help you troubleshoot the problem. By following the lines on the diagram, you can see which devices are connected to the vacuum system and where the vacuum leaks may be.

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