Can someone help me with the location of the neutral safety switch on my 98 monte carlo with an automatic. Pics would be great because I have been told you can see it down from the booster, but I don't know what I am looking for. Is it easier to change it from under the car?Thanks for any help.

 

Which engine\transmission do you have?

 

Not sure on the tranny, but it is the 3.1L. It is a 1998 LS.

 

The trans would be a 4T60-E.

Service Information Document ID# 548011
1998 Chevrolet/Geo Monte Carlo Park/Neutral Position (PNP) Switch Replacement

Removal Procedure

1. Apply the parking brake.
2. Block the wheels.
3. Place the vehicle is the Neutral position.
4. Remove the throttle body air inlet duct. Refer to Air Cleaner Assembly Replacement in Engine Controls.
   
   
5. Remove the automatic transaxle range selector cable.
   
   
6. Remove the wiring harness connectors.
7. Remove the automatic transaxle range selector lever. Refer to Automatic Transmission Range Selector Cable Lever Replacement .
   
   
8. Remove the PNP switch mounting bolts.
9. Remove the PNP switch.

Installation Procedure

Tool Required J 41545 Park/Neutral Switch Alignment Tool

1. 
2. Verify that the shift shaft in the Neutral position.
   Important
   
   DO NOT ROTATE A NEW PNP SWITCH. A new PNP switch is pinned in the Neutral position. If the bolt holes do not align with the mounting boss on the transaxle, verify that the shaft is in the Neutral position.
   Adjust the PNP switch if the new switch has been rotated and the pin is broken or if using an old PNP switch. Refer to Park/Neutral Position (PNP) Switch Adjustment .
3. Align the flats of the shift shaft to the flats in the PNP switch.
4. Install the PNP switch to the mounting boss. Notice
   
   Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
   
5. Install the PNP switch mounting bolts. Tighten Tighten the PNP switch mounting bolts to 25 N·m (18 lb ft).
6. Install the automatic transaxle range selector lever. Refer to Automatic Transmission Range Selector Cable Lever Replacement .
   
   
7. Install the wiring harness connectors.
   
   
8. Install the automatic transaxle range selector cable.
   Important
   
   Verify that the engine starts only in the Park position or the Neutral position once the PNP switch is installed. Readjust the PNP switch and/or check the shifter and the automatic transaxle range selector lever if the engine starts in any other position. Refer to Park/Neutral Position (PNP) Switch Adjustment and/or Automatic Transmission Range Selector Cable Adjustment .
9. Install the throttle body air inlet duct. Refer to Air Cleaner Assembly Replacement in Engine Controls.
10. Remove the blocks from the wheels.
11. Disengage the parking brake.