Test K: Generator Is Noisy

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Test K: Generator Is Noisy
WARNING: This page is about a different car, the 2004 Mazda Tribute, 2003 Mazda Tribute, and 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check For Accessory Drive Noise  - Check accessory drive belt for damage and correct installation. Check accessory mounting brackets and generator pulley for looseness or misalignment. Repair as necessary. Retest system for normal operation. If accessory drive belts are okay, and noise persists, go to next step.
  2. Check Generator Mounting  - Check generator mounting for loose bolts or misalignment. Repair or adjust as necessary, then retest system for normal operation. If generator mounting is okay, go to next step.
  3. Check Generator For Electrical Noise  - Disconnect generator 3-pin connector X-102a. See Figure. Start engine. With the engine running, use a stethoscope or equivalent listening device, if necessary. If noise is still present, go to next step. If noise is not present, replace generator. See GENERATOR  under REMOVAL & INSTALLATION. Retest system for normal operation.
  4. Check Generator For Mechanical Noise  - Turn ignition switch to OFF position. Start engine. Turn all accessories off. Using stethoscope, check generator for unusual mechanical noise. If generator is noise source, replace. See GENERATOR  under REMOVAL & INSTALLATION. If generator is not noise source, replace generator. See GENERATOR  under REMOVAL & INSTALLATION. Retest system for normal operation. If generator is not the noise source, check engine for noise.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.