OEM 2002 Chevrolet Express 2500 Neutral Safety Switch

2002 Chevrolet Express 2500 Parts Questions & Experts Answers

• Q: How to replace the Neutral Safety Switch on a 4L80-E transmission on 2002 Chevrolet Express 2500?

  A: A technician should begin by implementing the parking brake then placing the transmission into neutral before park/neutral position switch replacement on a 4l80-e transmission. A power lift assists with this step by allowing users to access the manual shaft to remove the nut securing the transmission control lever before taking out the control lever. Begin by cutting the electrical connectors off the switch before unscrewing the bolts that keep the park/neutral position switch attached to the transmission. After that, remove the manual shaft of the switch. Slight filing on the manual shaft's outer edge will remove any burrs when the switch refuses to slide off easily. Begin installation by positioning the switch hub flats parallel to manual shaft flats then push the switch forward along the shaft until the mounting bracket touches transmission bosses. A new switch setup includes a positive assurance bracket that replaces the necessity for manual neutral position adjustment tools. Secure the switch to the transmission with two bolts at a finger-tight torque before setting the neutral position adjustment tool (J41364-A) onto the switch where its slots should match the tool's tabs. Use the tool to turn the upper locator toward the switch slot position then tighten the bolts to 25 nm (18 ft. Lbs.). After tool extraction one must also remove any positive assurance bracket that is present. Secure the electrical connectors onto the switch followed by reinstallation of the transmission control lever with a 25 nm (18 ft. Lbs.) nut torque specification. After lowering the vehicle check that the device functions properly by confirming engine start-up occurs only when placed in p (Park) and n (Neutral). A switch requires replacement if it shows any operational issues.