OEM 2003 Cadillac CTS Fuel Tank

2003 Cadillac CTS Fuel Tank Parts and Q&A

• Q: How to replace the secondary fuel tank module on 2003 Cadillac CTS?

  A: The first step for replacing the secondary fuel tank module is to take out the fuel tank. The first step involves unconnecting the electrical connector from the secondary fuel tank module followed by cam lock ring rotation counter-clockwise using the Fuel Tank Sender Wrench (J 45747) to eliminate the cam lock ring from the fuel tank. Pull the secondary fuel tank module slightly from the fuel tank opening to gain access to the transfer tube. First disconnect the transfer tube with a seamless action by pulling away the locking mechanism from the module then remove the tube. Keep the new fuel tank module seal together with its component when installation begins but avoid any duplication of parts usage. Installing the new secondary fuel tank module seal requires you to place it on the module so that its bead points toward the fuel tank. The installation process begins by taking the transfer tube from inside the fuel tank while aligning the secondary fuel tank module to its opening before implementing tube attachment. When inserting the secondary fuel tank module into the fuel tank you should guide it while making sure the fuel level float operates without resistance. The module should be depressed to match the encapsulated ring position. Next, place the cam lock ring at the fuel tank opening before turning it clockwise using the Fuel Tank Sender Wrench (J 45747) until reaching full seat points. After inserting the electrical connector to the secondary fuel tank module you can properly install the fuel tank.