| 1. | Disconnect the vacuum hose (A) from the EVAP canister purge valve (B) and connect a vacuum gauge (C) to the hose.
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| 2. | Start the engine and let it idle. NOTE: Engine coolant temperature must be below 70 °C (158 °F). Is there vacuum? YES - Inspect vacuum hose routing. If OK, replace the EVAP canister purge valve.n NO - Go to 3. |
| 3. | Hold the engine at 3,000 rpm (min-1) with no load (in neutral) until the radiator fan comes on, then raise the engine speed to 3,000 rpm (min-1). Is there vacuum? YES - Go to 4. NO - Inspect vacuum hose routing. If OK, replace the EVAP canister purge valve.n |
| 4. | Turn the ignition switch OFF. |
| 5. | Reconnect the vacuum hose to the EVAP canister. |
| 6. | Remove the fuel fill cap. |
| 7. | Disconnect the purge air hose (A) from the EVAP canister and connect a vacuum pressure gauge 0-100 mmHg (0-4 in.Hg) (B) to EVAP canister (C).
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| 8. | Start the engine and raise speed to 3,000 rpm (min-1). Does vacuum appear on gauge within 1 minute? YES - See EVAP two way valve test to complete. Evaporative emission controls are OK.n NO - Replace the EVAP canister.n |