Fuel Delivery Insufficient
Definition: The fuel pump does not supply adequate volume during a volume testPOSSIBLE CAUSE ACTION
Frozen gas lines - Warm vehicle to thaw frozen lines
Vapor lock - Check vapor return line from fuel filter for obstruction, allow vehicle to cool down, check fuel line routing (away from heated areas)
Leaks in fuel lines or fittings - Tighten leaking fittings, replace as necessary, replace any leaking hose or line
Fuel tank vent line restricted - Clear vent restriction immediately, condition will cause tank collapse
Restricted fuel filter - Replace fuel filter.
Foreign matter in fuel tank - Perform fuel tank purge.
Fuel pump diaphragm ruptured - Replace fuel pump.