Here's a general outline of the process. Specifics may vary slightly depending on your transmission type (automatic or manual – this procedure assumes automatic) and the exact location of your NSS. Always consult your Jeep Cherokee's repair manual for detailed instructions and diagrams specific to your vehicle.
Tools You'll Likely Need:
* Socket wrench set (likely metric)
* Ratchet
* Extension(s)
* Possibly a pry bar or small screwdriver (for stubborn connectors)
* New neutral safety switch (ensure you get the correct one for your vehicle's year, model, and transmission)
* Wire brush (to clean terminals)
* Electrical grease (optional, but recommended)
* Jumper wires (for testing, optional but helpful)
* Multimeter (for testing, optional but helpful)
Steps:
1. Disconnect the Battery: This is crucial to prevent electrical shocks and short circuits. Disconnect the negative (-) terminal first.
2. Locate the Neutral Safety Switch: This is usually found on the transmission itself, near where the shift linkage connects. Its exact location varies slightly between years and models. Your repair manual will be invaluable here.
3. Access the NSS: You may need to remove some components to gain access, such as parts of the transmission linkage or undercarriage shielding. This is where having the repair manual is crucial; it will guide you on disassembly and reassembly.
4. Disconnect the Electrical Connectors: Carefully disconnect the electrical connectors from the NSS. Take note of how they connect; pictures are helpful. Sometimes a small pry tool is needed to release stubborn connectors. Clean the terminals with a wire brush.
5. Remove the NSS: This usually involves removing one or more bolts or screws holding the switch in place. It might be snug, so you may need to gently pry it out.
6. Install the New NSS: Carefully align the new NSS and install it securely, tightening the bolts or screws to the manufacturer's specifications.
7. Reconnect the Electrical Connectors: Reconnect the electrical connectors, ensuring a secure fit. Apply electrical grease to the connectors to prevent corrosion.
8. Reconnect the Battery: Reconnect the negative (-) terminal to the battery.
9. Test the Switch: Attempt to start the vehicle. It should only start when the gear selector is in Park or Neutral. If not, you may have a faulty switch or a wiring problem. A multimeter can help diagnose wiring issues, or you may need to use jumper wires to bypass the NSS for a short test. If the issue persists, don't keep trying to start – you'll drain your battery.
10. Reassemble: Put everything back together in the reverse order of disassembly.
Important Considerations:
* Repair Manual: This is essential. It provides specific diagrams and instructions for your vehicle.
* Transmission Type: The location and installation procedure may vary depending on whether you have an automatic or manual transmission.
* Safety: Always disconnect the battery before working on the electrical system.
* Testing: Thoroughly test the switch after installation.
* Professional Help: If you're unsure about any step, seek professional assistance.
This is a general guide, and the specific steps might vary for your particular vehicle. Again, consult your Jeep Cherokee's repair manual for the most accurate and detailed instructions. Failing to follow the correct procedure can lead to damage or injury.
