GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Fuel Supply Pump

Print

See Figure 1

REMOVAL & INSTALLATION



  1. Remove the air cleaner and disconnect the negative battery cable.
  2.  
  3. Unplug the electrical leads from the pump.
  4.  
  5. Use a 3 / 4 in. wrench to support the inlet fitting firmly and with a 5 / 8 in. wrench, unscrew the inlet tube.
  6.  
  7. Place a rag under the pump outlet side to collect fuel since the line is slightly pressurized.
  8.  
  9. Remove the pump mounting bracket nut and the pump.
  10.  

To install:
  1. Install the pump and bracket assembly on the engine, torque the lines to 19 ft. lbs. (26 Nm).
  2.  
  3. After the pump has been installed, disconnect the fuel line at the fuel filter in order to prime and bleed the lines. Use a basin to collect the fuel. When no air bubbles show up in the fuel, or the click-like sound stops, reconnect the fuel line.
  4.  



Click image to see an enlarged view

Fig. Fig. 1: Diesel electric fuel pump

 
label.common.footer.alt.autozoneLogo