Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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CARADIODOC
CAR REPAIR CONTRIBUTOR
34,308 POSTS
If it sounds like an airplane engine, suspect a noisy front wheel bearing. The only accurate way I've found to determine which one is noisy is to run the car in gear on a hoist and listen next to each one with a stethoscope.