1. Diagnose the Problem:
* Interior Handle Broken: This is the most common issue. The handle might be cracked, the linkage broken, or the internal mechanism malfunctioning.
* Exterior Handle Broken: Less common, but can involve a broken handle itself, or a failure of the connecting rod.
* Handle Doesn't Unlock/Lock: The problem might be within the handle mechanism, the locking actuator (the part that actually engages the latch), or a cable issue.
2. Tools You Might Need:
* Screwdrivers: Phillips and flathead, various sizes.
* Panel Removal Tools: Plastic pry tools to avoid scratching the door panel.
* Needle-nose pliers: For reaching small parts.
* Replacement Parts: You'll likely need a replacement interior or exterior handle, possibly linkage parts, or the whole door latch assembly depending on the severity of the damage. These are usually available at auto parts stores (like AutoZone, Advance Auto Parts, or NAPA) or online.
3. Repair Procedures (General Steps):
A. Interior Handle Repair:
1. Remove the Door Panel: This is usually done by carefully prying off the panel using plastic tools. There are typically several screws hidden under the armrest, door handle, and possibly elsewhere. Consult a repair manual or online video specific to your Sunfire year for precise locations. Be gentle to avoid breaking clips.
2. Inspect the Handle Mechanism: Once the panel is removed, you'll see the handle mechanism. Identify the broken part(s).
3. Replace the Broken Part: This might involve replacing the entire interior handle assembly, or just the broken linkage. Follow the reverse order of disassembly to reassemble.
4. Reinstall the Door Panel: Carefully put the panel back in place, ensuring all clips engage.
B. Exterior Handle Repair:
1. Remove the Door Panel (same as above): Accessing the exterior handle often requires removing the interior panel first.
2. Access the Exterior Handle: The exterior handle's attachment varies. It might be held in place by screws accessible from the inside after removing the interior panel. Some designs may require removing the exterior handle itself (after disconnecting the internal linkage).
3. Repair or Replace: If the handle is broken, you'll need a replacement. If the linkage is broken, this will also need repair or replacement.
4. Reassemble: Put everything back together in reverse order.
C. Handle Doesn't Unlock/Lock:
1. Remove the Door Panel: This is the first step in all cases.
2. Check the Cable: Examine the cable connecting the handle to the latch mechanism. Make sure it's not broken or dislodged.
3. Check the Actuator: The actuator is the motor or mechanism that actually unlocks the door. It might be broken or jammed. This is the most complex repair and might require replacement.
4. Lubricate: Sometimes, a bit of lubricant (like WD-40 or silicone spray) can help free up a sticky mechanism. Use sparingly and only if you're certain the problem is not a broken part.
Important Considerations:
* Repair Manual: A repair manual specific to your 1998 Pontiac Sunfire is highly recommended. It will provide detailed diagrams and instructions for your specific vehicle.
* Online Videos: Search YouTube for "1998 Pontiac Sunfire door handle repair." Many videos demonstrate the process.
* Safety: Always disconnect the battery's negative terminal before working on any electrical components in your car.
If you're not comfortable tackling this repair yourself, it's best to take your Sunfire to a qualified mechanic. This is particularly true if the problem involves the door latch mechanism itself. Improper repair can lead to security issues or further damage.
