Easy step by step instructions on how to replace an automotive fuel pump P0230, P0231, P0232 and P0233, though appearances will vary the process is the same on most vehicles. Difficulty Scale: 5 of 10 Tools and Supplies Needed. Fuel siphon hose. Fuel containers large enough to hold the amount of gas in the tank.
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Wrench set. Socket set. Fuel pump replacement. Shop towels. Protective eye wear and clothing. Fuel filter.
Fuel line removal tool. Fuel tank support Begin with the vehicle safety raised in the air enough to access the fuel tank. Use jack stands for additional safety. (No smoking or open flame.). Tighten Fuel Pump Mounting Bolts After completing these steps, reverse the order to reinstall the tank back into the vehicle.
It's best if a is installed at the time of the new fuel pump assembly. Add gas to the fuel tank before turning the ignition key, this will lubricate the pump.
Helpful Information Some manufacturers provide an access door to service the fuel pump, be sure to research this information before beginning. To test for a fuel pump failure a must be performed. Sometimes the the drive shaft must be removed along with the fuel tank.
The automotive engine is designed to operate on a specific fuel system pressure which is vital to. To maintain a constant pressure, the is located in the fuel tank and is comprised of an electric motor coupled to a small internal vein style pump.
Fuel pumps have a pressure relief valve that allows fuel to bypass while recalculating inside the fuel tank. Direct injection fuel pumps utilize an internal pressure regulator, while having only one liquid fuel line routed to the engine as opposed to two, (pressure and return lines.) When the ignition key is turned the fuel pump relay engages while supplying electrical power to the pump. This relay is controlled by the main which must detect engine rotation before signaling the relay. When servicing a truck fuel pump there is the option to remove the bed to access the assembly. Best Practices. Replace the when replacing the pump, debris can be dislodged and enter the fuel filter during a pump failure. Have a fire extinguisher available.
Inspect fuel pump electrical connector for burns or heated spotsa and replace if damaged. A burned connector can cause the pump to intermittently fail.
The fuel pump is controlled by a relay, this should be tested to ensure proper operation. Do not remove tank unless empty or close to empty, a full gas tank is heavy and can cause injury.