The vapor valve must be mounted in a vertical position, with the long fitting at the top, otherwise, excessive fuel vapor pressure may build up in the fuel tank. Excessive pressure could cause a fuel leak resulting in a fire or an explosion which could result in death or serious injury.

See Figure 4-8. The vapor valve is mounted to the left hand frame rail directly in front of the fuel tank. See 4.4 VAPOR VALVE.


On CA (California) models, the hose from the vapor valve bottom fitting goes to the charcoal EVAP canister.

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