Here's a breakdown of what makes it somewhat challenging:
* Accessibility: The starter is often tucked away in a somewhat cramped location, potentially requiring you to remove other components for better access. This could include things like the air intake system or parts of the exhaust manifold.
* Bolts & Connections: You'll likely encounter rusted or seized bolts, making their removal more difficult. The electrical connections can also be stubborn and may require some finesse to disconnect safely.
* Torque: It's important to properly torque the bolts upon reinstallation to avoid future problems. Using the wrong torque can damage the starter or the engine block.
* Wiring: Properly disconnecting and reconnecting the wiring is crucial to avoid electrical shorts or damage. Take photos before disconnecting anything to aid reassembly.
Overall: If you're comfortable working on cars, have the right tools (sockets, wrenches, possibly a breaker bar), and are willing to take your time, you can probably do it yourself. However, if you're not mechanically inclined, it's a job best left to a professional mechanic. The cost of professional labor might be less than the cost and frustration of a botched DIY repair. Consider your comfort level and mechanical skills before starting.