Monday, November 17, 2014
How to Replace a Fuel Regulator
A cars fuel injection system supplies fuel to the engine. In order to get optimum performance from your vehicle, the fuel must flow at a steady pressure. Regulators control the fuel flow, making sure it is consistent. Like other mechanical parts, regulators can break down and require replacement. Symptoms of a faulty regulator include lower gas mileage, excess smoke from exhaust pipes and leaking oil from the engine. Replacing a fuel regulator can be a difficult task for inexperienced owners, but if you have basic car repair experience, you can save money and replace it yourself.
Instructions
- 1
Relieve the pressure in the fuel tank by opening the gas cap. Open the hood of the car and separate the cable from the negative battery terminal. Pull out the cushion on the rear seat. Remove the screws on the service hole cover and take off the cover.
2Disconnect the electrical wiring from the fuel pump assembly. Use the fuel line disconnect tool to unplug the fuel outlet pipe from the fuel pump bracket. Unscrew the retaining screws for the fuel pump bracket with the socket wrench. Pull off the return hoses from the bracket. Take the assembly out of the fuel tank.
3Use the socket wrench to remove the fuel suction support from the fuel pressure regulator. Separate the fuel filter from the regulator. Find and remove the O-ring from the regulator.
4Apply a thin coating of gasoline to the O-ring and insert it into the new fuel pressure regulator. Attach the regulator to the fuel filter. Connect the fuel suction support to the regulator using the wrench.
5Replace the fuel pump assembly in the fuel tank and reconnect the hoses to the fuel pump bracket. Attach the retaining screws to the fuel pump bracket and connect the fuel outlet pipe to the fuel pump bracket.
6Reattach the wiring for the fuel pump assembly. Reinstall the service hole cover with the socket wrench. Reinstall the rear seat cushion and reconnect the negative battery cable.
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