GE
Abnormal Mechanical Noise
Generator is excessively noisy or has unusual knocking sounds
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Loose engine mounts, Exhaust leak at manifold, Internal engine damage (rod knock), Failing alternator bearings
How to Fix / Troubleshooting
Safety First: Turn the generator OFF and allow it to cool before touching engine or exhaust components. Do not run the unit if you suspect internal engine damage.
- 1. Inspect mounting hardware: Check that the GE generator base and engine mounts are tight and not torn. Tighten loose bolts.
- 2. Check exhaust system: Look for soot marks or gaps at the exhaust manifold and joints, indicating leaks. Tighten fasteners and replace gaskets as needed.
- 3. Listen to engine vs alternator: Use a mechanic's stethoscope or a long screwdriver to localize the noise to the engine block or alternator housing.
- 4. If knocking is deep and rhythmic: Shut down immediately; this may indicate internal engine damage requiring professional service.
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Repair Difficulty
Hard
4/5
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