The Ford Taurus' fuel development sends the petrol to the injectors under Correct energy. You want to hoist the van on jack stands for this. Probation the connexion to the vehicle and filler neck, looking for a loose clamp or deteriorating rubber. Dash off undeniable the mounting brackets and straps securely attach the cistern to the machine.
Instructions
Exterior Inspection
1. Observe the Gauze receptacle cap for damage or corrosion. Exchange the cap whether its gasket has a broken or damaged sealing imprint.
2. Glance over the fuel function and send lines. Probation for any cracks in the lines. Build confident the lines' connections to the injection manner and the in-line fuel filter are tight.
3. Test the Gauze cistern and filler neck for cracks, punctures or other damage. Any problems in the fuel manner can govern to a Blop in performance and wasted fuel, or the automobile might not lope at all. Routine troubleshooting of the Taurus' fuel method includes checking the exterior of the Gauze vehicle and fuel lines. Provided you compulsion to analysis the method internally, catechism the fuel pump action and the fuel impulse.
4. See all the metal lines and rubber hoses salient gone from the vat. Interchange or repair any loose connections, crimped lines or deteriorated hoses.
5. Help the fuel impact before inspecting the step internally. The Taurus has an inertia switch reset Press-stud you can push to advice the compel nowadays. This switch is in the Timber carry on the trim panels on the hold water side (1996 to 1999 models) or Chauffeur's side (following models).
Fuel Pump Check
6. Assemble undeniable the fuel pump works. Remove the Gauze cap and listen near the filler opening while someone turns the ignition on. A whirring sound for a couple of seconds funds the fuel pump is operating.
7. Test the fuel pump's fuse whether you didn't hear the sound (this fuse is Character 10 in the fuse box). Convert the fuse whether it is blown. Provided it blows again, proof for a short in the fuel pump course. Provided the original fuse is good, test the relay operation by applying battery voltage to Circuit 238 in the fuse box (1998 or later models only).
Connect a fuel pressure gauge to fuel pressure test port (you need to remove its cap). The gauge must have Schrader valve adapter. Turn the ignition on and wait for the fuel pump to pressurize the lines.10. If you still get no sound, the problem can be the relay, control circuit or the fuel pump itself.
Fuel Pressure
9.8. Test the fuel pump with the ignition switch again. If you hear the whirring sound now, the fuel pump relay or its control circuit is bad.
Observe the gauge's reading, once it has stabilized. For a 1996 to 2000 Taurus, the pressure should be 37 to 45 pounds per square inch. On newer models, it should be 45 to 56.
11. Start the engine and let it idle. The fuel pressure should now be 26 to 45 psi for a 2000 or older Taurus and 50 to 56 for newer models.
12. Remove the vacuum hose from the fuel pressure regulator. Test the fuel pressure regulator if the fuel pressure doesn't rise several psi with the hose removed. Connect the vacuum line back immediately.
13. Pinch the fuel return line shut if the pressure reading was low and observe the gauge again. Replace the pressure regulator if the pressure sharply rises now. If it doesn't rise, check for a restriction in the supply line. If there is no restriction, you have a defective fuel pump.
14. Check for a blockage in the fuel return line if the pressure was too high. Turn off the engine, disconnect the line and blow into it. Replace the regulator if there is no blockage.
15. Use a vacuum gauge on the regulator's vacuum hose to check for vacuum with the engine started. Replace the regulator if you get a good amount of vacuum. If there is no vacuum, check for a clogged vacuum port or hose.
16. Turn off the ignition and check the fuel pressure gauge after 5 minutes. If the pressure drops more than 5 to 7 psi, you could have a defective fuel pump, leaking fuel lines or injectors or fuel pressure bleeding to the return line.
