Astro Van M L4-151 2.5L (1985)
Fig. 65 Purge valve type canister. 1985-87 4-151 engines w/fuel injection
1985-86 4-151 Engine
Purging of the canister, Fig. 65, is controlled by a purge valve and throttle valve position. Manifold vacuum opens purge valve, allowing vapors to
purge through purge line whenever engine is running above idle.
