Toyota Pick-ups/Land Cruiser/4Runner 1970-1988

Electric Fuel Pump

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All fuel injected trucks are equipped with an electric fuel pump. The fuel pump on the 1984 Pick-Up is attached to the front side of the fuel tank. The pump on 1985-88 models is located inside the fuel tank.

REMOVAL & INSTALLATION



1984 Pick-Up
  1. Disconnect the negative battery cable.
  2.  
  3. Unplug the fuel pump wiring connector.
  4.  
  5. Unscrew the four bolts and remove the service hole cover.
  6.  
  7. Disconnect and plug the fuel pump inlet hose.
  8.  
  9. Remove the bolt at the fuel pump bracket.
  10.  
  11. Raise the rear of the truck and support it with jack stands.
  12.  
  13. Remove the fuel pipe bracket. Slowly loosen and then disconnect the fuel pump outlet hose.
  14.  
  15. Unscrew the two remaining fuel pump bracket bolts and then remove the pump.
  16.  

To install:
  1. Install the fuel pump and connect the outlet hose.
  2.  
  3. Install the fuel pipe bracket.
  4.  
  5. Connect the fuel pump inlet line, wiring connector and the battery cable.
  6.  
  7. Start the engine and check for any leaks.
  8.  

1985-88 Pick-Up and 1988 Land Cruiser

See Figure 1

  1. Drain the fuel from the tank and then remove the fuel tank.
  2.  
  3. Remove the seven bolts and then pull the fuel pump bracket up and out of the fuel tank.
  4.  
  5. Remove the two nuts and then tag and disconnect the wires at the fuel pump.
  6.  
  7. Pull the fuel pump out of the lower side of the bracket. Disconnect the pump from the fuel hose.
  8.  
  9. Remove the rubber cushion and the clip. Disconnect the fuel pump filter from the pump.
  10.  

To install:
  1. Install the fuel pump filter to the pump.
  2.  
  3. Insert the outlet port of the fuel pump into the fuel hose.
  4.  
  5. Install the rubber cushion to the lower side of the fuel pump.
  6.  
  7. Push the lower side of the fuel pump (and the rubber cushion) into the pump bracket.
  8.  
  9. Using a new gasket, position the bracket on the fuel tank and then install and tighten the seven mounting bolts to 30 inch lbs. (3.4 Nm).
  10.  
  11. Install the fuel tank.
  12.  
  13. Start the truck and check for any loose connections or leaks.
  14.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the electric fuel pump-1985-88

TESTING



See Figures 2 and 3

  1. Turn the ignition switch to the "ON'' position, but don't start the engine.
  2.  
  3. Remove the rubber cap from the fuel pump check connector and short terminals FP and +B .
  4.  
  5. Check that there is pressure in the hose to the cold start injector.
  6.  

At this time you should be able to hear the fuel return noise from the pressure regulator.

  1. If no pressure can be felt in the line, check the fuses and all other related electrical connections. If everything is all right, the fuel pump will probably require replacement.
  2.  
  3. Remove the service wire, reinstall the rubber cap and turn off the ignition switch.
  4.  



Click image to see an enlarged view

Fig. Fig. 2: Short the check connector-typical



Click image to see an enlarged view

Fig. Fig. 3: Short the check connector-typical

 
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