* Starter Motor: This is the most common suspect. A shorted starter motor will draw massive current, instantly blowing the fuse. The short could be internal to the starter itself, or in the wiring leading to it.
* Ignition Switch: A faulty ignition switch could be causing a short circuit. It controls the power flow to many components, and a malfunction could send excessive current to a particular circuit.
* Wiring Harness: Damaged or frayed wiring in the harness leading to the starter, ignition system, or other components can easily cause a short. Look for any visible damage, particularly near the battery and engine. Rodents are notorious for chewing on wiring harnesses.
* Solenoid: The starter solenoid is an electromagnetic switch that engages the starter motor. A stuck or shorted solenoid can draw excessive current.
* Other Components: Although less likely, other components could be causing the issue. It's less common, but a short in the lighting system or accessories could sometimes blow the 20-amp fuse if it shares a circuit with the starter.
Troubleshooting Steps:
1. Visual Inspection: Carefully examine all wiring leading to the starter motor, ignition switch, and battery. Look for any signs of damage, fraying, or corrosion.
2. Check the Starter: Have the starter motor tested at an auto parts store. They can usually perform this test for free.
3. Inspect the Solenoid: Visually inspect the solenoid for any signs of damage or corrosion. You may need to tap it gently to see if it's stuck.
4. Ignition Switch: Testing the ignition switch is more complex and may require a multimeter and some electrical knowledge. It's best left to a professional unless you're experienced with automotive electrical systems.
5. Fuse Location & Type: Make sure you're replacing the correct 20-amp fuse with the *same amperage rating*. Using a higher amperage fuse is dangerous and will likely result in a fire. Determine precisely *which* 20-amp fuse is blowing—your owner's manual or online resources should provide a fuse box diagram.
6. Professional Help: If you're uncomfortable working with car electrical systems, take your Sebring to a qualified mechanic. Improper diagnosis and repair could lead to further damage or even a fire.
The fuse is a symptom, not the problem. Replacing the fuse repeatedly without addressing the underlying short circuit will only lead to more blown fuses and potential damage to your car's electrical system.
