OEM Chevrolet Express 3500 Neutral Safety Switch

Chevrolet Express 3500 Neutral Safety Switch Parts and Q&A

• Neutral Safety Switch
  24221125
  Q: How to replace the Neutral Safety Switch on the 4L60-E/4L65-E transmission on Chevrolet Express 3500?

  A:

  Start by engaging the parking brake then placing the transmission into neutral before replacing the park/neutral position switch on the 4l60-e/4l65-e transmission. First raise the vehicle before detaching the transmission control lever's manual shaft nut and subsequently removing the transmission control lever. Remove the bolts which secure the park/neutral position switch to the transmission before untangling its electrical connectors enabling the switch's removal from the manual shaft. Use file sandpaper to file down the outer manual shaft portion when the switch stays in place instead of sliding off. Accomplish installation by positioning the switch hub flats next to manual shaft flats and moving the switch down the shaft until mounting bracket reaches transmission bosses. The arrival of a new switch contains an integrated positive assurance bracket which eliminates the need for a neutral position adjustment tool. Apply two mild bolt torques to install the switch afterward slide on the j 41364-a neutral position adjustment tool (J 41364-A). Put the tool's slots into position with its tabs. Use the tool to turn it until the upper locator pin meets the switch slot before torquing the bolts to 25 nm (18 ft. Lbs.). You should first remove the j 41364-a tool before you proceed to remove the positive assurance bracket if it's installed. Reattach electrical connectors to the switch before installing the transmission control lever with a nut that reaches 25 nm (18 ft. Lbs.) torque. After lowering the vehicle check the switch operations to confirm the engine will start only when placed in p (Park) or n (Neutral) positions. Perform a switch replacement when it fails to function.
• Neutral Safety Switch
  24229422
  Q: What tools are required to service and repair the Neutral Safety Switch on Chevrolet Express 3500?

  A:

  The tools and equipment needed to service and repair the transmission position switch/sensor include: neutral position adjustment tool (J 41364-A). Start by placing the parking brake and shifting the transmission in neutral. Pulled negative Battery Cable, removed nut from the end of the tranmission control lever to the manual shaft and removed lever. Next, you will disconnect the wiring harness connector from the park/ neutral position switch and remove the two bolts which hold the switch to the transmission after which you will be able to take off the switch on the manual shaft. For installation, place the neutral position adjustment tool (J 41364-A) on the park/neutral position switch where the two slots on the switch fall into the lower tabs of the tool. Twist the tool until the upper locator pin meets the slot on the top of the switch. When the switch does not come off the manual shaft, file the outer edge of the shaft removing any burrs. Mount the switch on the transmission manual shaft by placing into place according to the switch hub flats and the manual shaft flats, until the mounting bracket is in contact with the transmission mounting bosses. Install the switch to the transmission with the two bolts and tighten them to 28 nm (21 ft. Lbs.). Further, take off the neutral position adjustment tool (J 41364-A), connect the wiring harness connector back to the switch, and reinstall the transmission control lever to the manual shaft with the nut that should be tightened to 28 nm (21 ft. Lbs.). Finally, lower down again, connect the negative Battery Cable and ensure the switch works as it should, and only the engine can start in the p (Park), n (Neutral).