When I try to start my engine, I hear a clicking sound but nothing happens. Do I need a new starter?

Maybe, but the only way to know for sure is to check out the battery, solenoid and starter. If you hear a clicking noise, it means voltage is getting through to the solenoid. But there may not be enough voltage to spin the starter. So start with the battery and cables.

Is the battery at full charge? Are the battery cables clean and tight? Be sure to check both ends. Are the other electrical connections at the solenoid and starter clean and tight? It doesn't take much corrosion to choke off the flow of amps to the starter.

Next, check the wiring connections on the solenoid and starter. Are they clean and tight? Also check the solenoid ground connection or its mounting. Rust or corrosion here can interfere with the flow of amps, too.

Try bypassing the solenoid to see if the starter spins. If it spins, the problem is excessive resistance in the solenoid. Replace the solenoid. If the starter doesn't spin, or turns very slowly, however, the starter is dragging and needs to be replaced.