Before you begin:
* Safety First: Disconnect the negative (-) battery terminal before starting any work. This prevents accidental shorts and shocks.
* Gather Tools: You'll need a socket set (likely 10mm or 13mm, check your owner's manual), possibly a ratchet, and potentially a wrench for the wire harness connector. A flashlight is also helpful.
* Identify the Faulty Coil: If you're replacing a coil because of a problem, make sure you're replacing the *correct* one. A misfire in one cylinder will usually be accompanied by a diagnostic trouble code (DTC) from the onboard computer, which a scan tool can read.
Coil-on-Plug (COP) System (Most Likely):
1. Locate the Faulty Coil: The COP coils are mounted directly on top of the spark plugs. Identify the cylinder that's misfiring (if applicable).
2. Disconnect the Electrical Connector: Carefully unplug the electrical connector from the coil. There's usually a locking tab or clip; gently press or release it to disconnect.
3. Remove the Coil: Most COP coils are held in place by a bolt or sometimes just friction. Unscrew the bolt (if present) and carefully remove the coil.
4. Install the New Coil: Carefully align the new coil in the same position as the old one. If there was a bolt, tighten it securely.
5. Reconnect the Electrical Connector: Plug the electrical connector back onto the new coil, ensuring it's firmly seated.
6. Reconnect Battery Terminal: Reconnect the negative (-) battery terminal.
Distributor Ignition System (Less Likely):
This is less common in 2002 vehicles, but if your Safari has a distributor, the process is different:
1. Locate the Ignition Module: The ignition module is usually mounted near the distributor. It's a small, rectangular box with wires connected to it. This module fires the coils.
2. Disconnect the Wiring: Carefully unplug the wires connecting to the ignition module. Label or take pictures to ensure correct reconnection.
3. Remove the Ignition Module: There may be bolts securing it. Unscrew and remove the module.
4. Install the New Module: Install the new module, ensuring that it's properly seated and that all the wires are connected correctly.
5. Reconnect the Wiring and Battery Terminal: Reconnect all the wiring harnesses and the negative (-) battery terminal.
Important Considerations:
* Owner's Manual: Consult your owner's manual for specific instructions and diagrams relevant to your vehicle's engine. This will be the most accurate source of information.
* Professional Help: If you're not comfortable working on your vehicle, it's best to take it to a qualified mechanic. Incorrect installation can lead to further damage.
* Torque Specifications: If you're removing and replacing bolts, be sure to tighten them to the manufacturer's specified torque. Over-tightening can damage the parts.
Remember safety is paramount. If you have any doubts, seek professional assistance.
