OEM Chevrolet Corvette Fuel Tank

Chevrolet Corvette Fuel Tank Parts and Q&A

• Fuel Tank, Driver Side
  25899601
  Q: How to replace the fuel tank module on the left side on Chevrolet Corvette?

  A:

  The process of Fuel Tank module replacement on the left side begins by disconnecting the negative Battery Cable followed by removing the left Fuel Tank and placing it on a suitable work surface. Separate the Fuel Pump jumper harness from the module and disconnect both the jet line insert from the crossover tube at the Fuel Tank and remove the fuel feed line from its welded clip position. Pay attention since the Fuel Pump module possesses spring action which causes it to rise after the removal of the locking ring. The procedure requires removal of the locking ring from the Fuel Pump module with the fuel sender lock ring tool (J39765-A) so the technician can extract the fuel module while retaining both jet lines without harming the fuel sender float arm. Remove the jet lines from their quick-connect connectors installed at the Fuel Pump module inner port before extracting both lines from their retaining cup then removing the module o-ring through the Fuel Tank opening. The jet line insert should be removed through the crossover tube which leads to the Fuel Tank opening. To replace the fuel module assembly one should move the fuel level sender card from the old module into the new one. Place the new jet line insert through the crossover tube to the Fuel Tank opening and fasten it with the Fuel Pump module o-ring at the Fuel Tank opening. The jet line connector needs tape application to gain access while the pump module enters the Fuel Tank. Feed the new pump module into the Fuel Tank until it reaches the midpoint while cautioning against float arm damage. Then use the taped jet line to guide its upward movement through the pump module opening. Attach the jet line connectorless component into the module retainer cup while securing it with the module retaining clip. Pull the tape from the jet line by using a connector but observe that all connectors connect properly. You should attach the Fuel Pump module lock ring to the inner module port after connecting jet line quick-connect connectors. The fuel sender lock ring tool (J39765-A) must be used to achieve full ring engagement of the Fuel Pump module lock ring. Following this complete the fuel line connection into the weld clip at the tank's side. Check the resistance values of the Fuel Pump module using a dmm against empty and full Fuel Tank conditions by inverting the Fuel Tank to measure the readings (40 ohms resistance when empty, 250 ohms when full). Reinstall the left Fuel Tank while connecting the jet line insert connector into the crossover tube to the Fuel Tank opening and attaching the Fuel Pump jumper harness to the Fuel Pump module.
• Fuel Tank, Passenger Side
  25899602
  Q: How to replace the fuel tank module on the right side on Chevrolet Corvette?

  A:

  Begin the right Fuel Tank module replacement process by disconnecting the negative Battery Cable and removing the right Fuel Tank yet placing it on a suitable work station. Start the replacement by disconnecting the evap purge line from the Fuel Pump module and then disconnecting the Fuel Pump module harness connector and the Fuel Tank pressure sensor harness connector. The Fuel Pump module replacement process requires users to remove the ftp sensor. The jet line insert connector needs removal from the crossover tube which leads into the Fuel Tank opening. The Fuel Pump module possesses spring action which causes it to rise upward after unscrewing the locking ring. The fuel sender lock ring tool (J39765-A) helps users remove the Fuel Pump module locking ring so they can pull out the module from the Fuel Tank by maintaining connection of the jet lines to protect the fuel sender float arm. The jet line quick-connect connectors need removal from the Fuel Pump module while noting their positions ahead of reconnection. Additionally, extract the Fuel Pump module o-ring from the tank opening. Remove the jet line insert through the crossover tube which leads to the Fuel Tank opening. Before installation of new components check the jet line insert for damage and replace if needed followed by inserting a new Fuel Pump module o-ring to the Fuel Tank opening. Pull the connectors to verify their proper latching before pulling the quick-connectors up to the pump module opening where they should reconnect as explained before. After placing the pump module into the Fuel Tank avoid damaging the float arm continue by aligning and compressing the Fuel Pump module when installing the lock ring. The fuel sender lock ring tool (J39765-A) must be used to secure the Fuel Pump module lock ring completely. A dmm shows that the Fuel Pump module resistance checks should display 250 ohms when the tank is full and 40 ohms when it is empty after turning the tank upside down. Complete the jet line insert connector attachment by pulling it out until it meets specifications and attach it to the crossover tube at the Fuel Tank opening. You need to install the ftp sensor first before connecting its harness connector followed by the Fuel Pump module harness connector and lastly attaching the evap purge line from the Fuel Pump module before setting the right Fuel Tank.