The Buzz That Tells You Everything About a Used Guitar

The buzz nobody blames correctly

A Stratocaster comes in with a rattle on the G string, seventh fret. Most players swap the strings and call it fixed. The rattle comes back a week later, because strings were never the problem. That buzz is the neck talking, and almost nobody listens to it the first time.

Sighting down the neck like a pool cue

Hold the guitar up and look from the headstock toward the body, one eye closed, like sighting a pool cue. A neck with too much relief, meaning it bows forward, shows a visible dip in the middle. A back-bowed neck curves the other way and chokes notes higher up the fretboard. Insiders do this in under ten seconds, standing right at the shop counter, before ever plugging in an amp.

Fret wear writes its own diary

Run a fingernail across the frets where the first three positions get played hardest. Deep grooves mean thousands of hours of use, but that alone does not kill value. What matters is whether those grooves are even across all six strings. Lopsided wear, heavy on the low E and light everywhere else, hints at a neck that was never quite straight to begin with, or a player who fought the action for years without knowing why.

Why the truss rod cover matters more than the finish

Every adjustable neck has a truss rod, a metal rod inside that controls curve. Pop the small cover near the headstock and look for fresh tool marks around the nut. Scratches there mean someone has been chasing a fix, often without success. A never-touched truss rod nut, still crisp with factory finish, is a quiet clue that the neck has stayed stable since it left the factory.

The bent tuner most sellers never mention

A bent tuning peg gets waved off as cosmetic, and sometimes it is. But a tuner struck hard enough to bend usually shares that same impact with the neck heel or the joint where neck meets body. At A-1 Trade & Loan on Commercial Drive, that connection gets checked every time a bent peg shows up, because the two damages travel together more often than sellers want to admit.

Matching numbers turn a repair into a red flag

A guitar with its original neck, stamped with a date or serial that matches the body pocket, sells like a documented pedigree. Swap that neck for a spare, even a good one, and the instrument quietly loses its paper trail. Fret buzz on a matching-numbers neck is a fixable setup issue. The same buzz on a mismatched neck raises a different question entirely, and buyers who know guitars will ask it.

What the case says before you open it

A hardshell case with foam still snug around the body shape means the guitar has been protected, and necks stored flat tend to stay straighter over the years. A gig bag with a crushed corner tells a rougher story, one where temperature swings and rough handling had years to work on that thin strip of wood. Case condition alone will not confirm a neck problem, but it sets expectations before the guitar even comes out.

Before bringing a guitar in, spend thirty seconds sighting down the neck under a bright light and running a thumbnail along the frets for uneven grooves. Then pull up sold listings on Reverb or eBay for the exact model and year, since fret wear and neck condition swing the price far more than a scratched pickguard ever will. Bring the case too · buyers and shops both read it as part of the guitar's history.