OEM 2004 Chevrolet Corvette Ignition Lock Cylinder

2004 Chevrolet Corvette Ignition Lock Cylinder Parts and Q&A

• Q: How to service and repair the Ignition Lock Cylinder on 2004 Chevrolet Corvette?

  A: Service and repair of ignition switch lock cylinders requires key cutting on blank keys to the necessary levels based on the determined codes from either code lists or key code diagrams followed by assessing key operation within the lock cylinder. The ignition lock holding fixture (J 41340) serves as the necessary tool for both assembling and coding ignition lock cylinders. Measure the tumbler numbers and placement by positioning the key tip on the illustration key alongside the diagram before noting the lowest visible tumbler number at positions 1 through 10. .insert the coded tumblers into their respective positions and then pull on the side bar until it restores the tumblers' position and add one tumbler spring above each tumbler . Use superlube gm p/n 12346241 or equivalent to lubricate the spring retainers then position their prongs into the slot at each cylinder end while pressing them firmly into place. The inspection checks proper installation when the spring retainer stays in position while inserting the key into the cylinder to verify the side bar drops completely straight against the cylinder diameter. Follow correct disassembly procedures then reassemble before key removal. Put the cylinder into the ignition lock holding fixture (J 41340) with the spring retainer facing up under punch slots until the cylinder bezel reaches fixture end. Then secure the holding screw. Use j 41340 to stake the lock cylinder metal over the retainer corners by pressing the punch's flat side against the cylinder bezel face. To stake the remaining retainer end, position the punch at a 180-degree angle against the slot's end on j 41340 before driving the metal over the retaining structure's opposite side. Check the retainer stakes through fixture discontinuation and loading screw release. Then remove the cylinder and verify the retainer stake quality before restaking as necessary. Apply lubrication to the cylinder slot then place the spring retainer and retainer inside the slot. Apply gm p/n 12345996 or equivalent paste grease to detent pins and cylinder retainer components as needed using grease paste instead of spray lubricants. Side Door Lock Cylinder coding utilizes a five snap-in tumbler design with the brass retainer tumbler at positions 1-5 and the standard tumblers at positions 6-10 for coding.