Is the 6.5 diesel lift pump still running?
Is the 6.5 diesel lift pump still running? You should be able to hear and feel the 6.5 diesel lift pump running. Another method to verify the pump's operation is to open the fuel filter water drain in the engine compartment with the engine running. If fuel sprays from the end of the hose and the truck continues to run, the pump is still working. What are the symptoms of a lift pump failure? The most common symptoms of lift pump failure are slightly harder starting and low power. This pump is located underneath the driver's seat area inside of...