2000 Honda Civic Front Humming Noise

HONDA CIVIC
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DSONNENBERG
  • MEMBER
  • 2 POSTS
Hello,

I have a 2000 Honda civic with automatic transmission and 78,000 miles. It has just recently started making a loud humming noise from the front of the car when the RPMs near 3k. I only notice the noise as I drive home from work, when I have the air conditioning on. This made me think it was somehow tied the the AC, but it makes the noise even if the AC and fan are off. I also wondered if it could be a wheel bearing, but it doesn't make the noise as I turn. Any advice would be greatly appreciated. Thanks in advance for the help.

Doug Sonnenberg
Jun 6, 2006 at 8:30 AM
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HONDAGUY1212
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  • 3 POSTS
Do you have a cold air intake?
Jun 7, 2006 at 6:09 AM
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DSONNENBERG
  • MEMBER
  • 2 POSTS
I don't have a cold air intake.

I found out some more information about the problem this morning. It does make the problem when it is cooler, I guess I just didn't notice it on the way to work.

Also, I think it may be a response to the wind and not the engine RPMs. As I passed a semi truck that was going the opposite direction, it made the noise as the "shock wave" hit me but then stopped as the truck passed. I'm now guessing that there is something loose in the front of the car that is vibrating as the wind hits it but I can't find anything that is loose.

Thanks,
Doug
Jun 7, 2006 at 6:34 AM
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BRUCE HUNT
  • ✓Experienced Mechanic
  • 3,754 POSTS
Check the rubber cushions that the hood rests on for a snug seating. There are other things as well like the radiator mounts, etc.
Jun 12, 2006 at 4:04 AM
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Suggested Repair

Check that the rubber cushions the hood rests on are seated snugly. Also inspect radiator mounts and other front components that could vibrate in the wind.

Conversation Summary

A 2000 Honda Civic with an automatic transmission and 78,000 miles developed a loud humming noise from the front, first noticed near 3,000 rpm and with the air conditioning on, though it also occurred with the AC and fan off. It did not change while turning, so a wheel bearing seemed less likely. The owner later found the noise also occurred in cooler conditions and when a passing truck's air blast hit the car, suggesting something loose vibrating in the wind rather than an engine-speed issue. The expert advised checking the hood's rubber cushions for a snug seating and inspecting related items such as the radiator mounts.

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