GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37088-A Fuel Line Disconnect tool

Removal Procedure

  1. Remove the driveline support assembly. Refer to Driveline Support Assembly Replacement in Propeller Shaft.
  2. Remove the crossover tube from the clamp located above the transmission.

  3. Object Number: 903539  Size: SH
  4. Disengage the left crossover tube CPA retainer by pulling the tab (1) outward and rotate.
  5. Important: The crossover tube CPA is released when the latch disengages from the tank connection groove.


    Object Number: 903540  Size: SH
  6. Rotate crossover tube collar (3) counter-clockwise to disengage.

  7. Object Number: 903557  Size: SH
  8. Disconnect the crossover tube from the left fuel tank by pulling the tube straight out of the fuel tank connection.
  9. Repeat steps 3 through 5 for the right side tank.

Installation Procedure


    Object Number: 903547  Size: SH
  1. Lubricate the right crossover tube to fuel tank connection O-rings (1-4) with PN 1051717 rubber lubricant.
  2. Important: Note the location of the T-shaped alignment feature (5) between the jet pump feed/return pipes connector.


    Object Number: 903557  Size: SH
  3. Lubricate the crossover tube O-ring mating surfaces (1-4) with PN 1051717 rubber lubricant.

  4. Object Number: 903557  Size: SH

    Important: 

       • Note the T-shaped alignment feature on the crossover tube.
       • The crossover tube will not fully seat into the fuel tank if the jet pump lines are misaligned.

  5. Connect the crossover tube to the right fuel tank using the features previously noted.
  6. Important: The crossover tube collar tangs will not latch if misalignment exists.

  7. Rotate the crossover tube collar (3) clockwise to engage the tangs.

  8. Object Number: 903539  Size: SH
  9. Rotate the crossover tube CPA retainer counter-clockwise past the collar latching tang and push the tab (1) into the locked position.
  10. Important: If the CPA retainer is locked into position, the crossover tube collar will not rotate.

  11. Test the crossover tube to fuel tank connection by attempting to rotate the crossover tube collar counter-clockwise.
  12. Repeat steps 1 through 6 for the left side fuel tank.
  13. Snap the crossover tube into the clamp located above the transmission.
  14. Install the driveline support assembly. Refer to Driveline Support Assembly Replacement in Propeller Shaft.