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. Service and Repair
Foreign matter in fuel tank Perform fuel tank purge. Fuel Tank Purge Procedure
Fuel pump diaphragm ruptured Replace fuel pump. Service and Repair