OEM Chevrolet Express 1500 Neutral Safety Switch

Chevrolet Express 1500 Neutral Safety Switch Parts Questions & Experts Answers

• Neutral Safety Switch
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  Q: How to replace the Neutral Safety Switch on a 4L80-E/4L85-E automatic transmission on Chevrolet Express 1500?

  A: In order to replace the park/neutral position switch on a 4l80-e/4l85-e automatic transmission, make sure to set the parking brake, as well as move the transmission into neutral. Lift the vehicle and remove the nut holding the transmission control lever to the manual shaft, and then it is removed. Unplug the electrical connectors from the switch, and take out the bolts that hold the park/neutral position switch to the transmission, and then remove the switch from the manual shaft. Should the switch not come off easily, shave the outer edge of the manual shaft to get rid of any burrs. Install the switch by putting the switch hub flats in line with the manual shaft flats, and slip the switch on the shaft to make the mounting bracket touch the transmission bosses. When a new switch is being installed there will be a positive assurance bracket so neutral position adjustment tool is not required. Tighten the switch to the transmission using two bolts finger tight and align the neutral position adjustment tool (J 41364-A) on the switch, make sure the slots are locating with the tool tabs. Adjust the tool by spinning it to ensure lines up into the slot of the switch bolt and secure it to 25 nm (18 ft. Lbs). Therefore, eliminate the adjustment tool, and where necessary, the positive assurance bracket. Reconnect the electrical connectors to the switch, insert the transmission control lever onto the manual shaft using the nut and tighten it to 25 nm (18 ft. Lbs.). Lastly, lower the vehicle and test the switch for its proper operation by making sure that the engine clicks only when the vehicle is in p (Park) or n (Neutral) positions. Replace it if it does not work accordingly.