The most common failure we see on 2002-era doors isn't the spring - it's the opener. Doors from that build year often still run their original motor unit, and a 20-plus-year-old opener drive gear or capacitor is living on borrowed time even when the door itself still swings fine by hand. People tune up the door and never look at the opener, then wonder why it still won't close on command.
The second place it goes sideways: a homeowner replaces a broken spring themselves or hires whoever's cheapest, and the new spring doesn't match the door's weight. An undersized spring works for a few weeks, then the opener starts straining to lift the door, burning out the motor months later. At that point you've paid for two repairs instead of one.
Because every visit here means an 18-mile drive from Moreno Valley, we try to catch both issues on one trip rather than quoting a tune-up and finding the opener problem on a return call. If your door is original to a 2002-built Lake Elsinore house and nobody's serviced the opener yet, say so when you book - it changes what we load on the truck.