Why is My Guitar Fretboard Buzzing After Changing Strings?

If you’ve just changed your guitar’s strings and now the fretboard is buzzing on every string except the low E, specifically when you go towards the higher frets, there are several potential issues to consider. This guide will walk you through common causes and solutions to help you diagnose and fix the problem.

Common Causes and Solutions

String Height (Action)

If the action—the height of the strings above the fretboard—is too low, the strings can buzz against the frets.

Solution:

Adjust the action by raising the bridge saddles or adjusting the truss rod to give the neck a slight relief. Ensure the relief is around 0.010"" to 0.020"" at the 8th fret when measured between the string and the fretboard.

Neck Relief

If the neck is too straight or back-bowed, the strings can sit too close to the frets, especially in higher fret areas.

Solution:

Check the neck relief by pressing down on the first and last frets of the low E string and measuring the gap at the 8th fret. There should be a small gap around 0.010"" to 0.020"". Adjust the truss rod if necessary.

Frets Condition

Worn, uneven, or damaged frets can cause buzzing when the strings come into contact with them.

Solution:

Inspect the frets for wear and unevenness. If they are uneven, a fret leveling and crowning may be required. Professional refinishing is often necessary for more serious issues.

Nut Height

If the strings are too low in the nut slots, it can cause buzzing when fretting notes, especially on the higher frets.

Solution:

Check the nut height. If it’s too low, you may need to replace the nut or shim it to raise the string height.

String Type or Gauge

Changing to a different gauge—thicker or thinner—can affect the setup of your guitar.

Solution:

If you recently changed gauges, consider adjusting the setup to accommodate the new strings. This may include adjusting the truss rod or bridge height.

Bridge Issues

If the bridge saddles are not properly adjusted, it can lead to buzzing.

Solution:

Ensure the saddles are adjusted correctly for your string gauge and action preference. Consult your guitar’s setup manual for specific guidelines.

Troubleshooting Steps

Check Action and Neck Relief: Measure and adjust as needed. Inspect Frets: Look for wear and unevenness. Evaluate Nut Height: Ensure the strings are not too low. Play with Different String Gauges: If you recently changed gauges, consider resetting the action.

If you’re not comfortable making these adjustments, it might be best to take your guitar to a professional for a setup.

For more detailed guidance and professional assistance, consult a reputable guitar technician or professional setup service.