Skip the auto shop - Our mechanics make house calls

Q: What does it mean when the harmonic balancer wobbles?

asked by on

The 2000 Honda Civic EX actually still runs fine but idles rough and a little loud. However, the fan belt came off because the harmonic balancer is wobbling so badly. Does this mean I need a new harmonic balancer? Or is this a indication of further internal damage and that I may be need to rebuild my engine? Is there some test that I can do to check if there is internal damage?

My car has 142000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. When the harmoni...

Hi, thanks for writing in. When the harmonic balancer is wobbling, it would be best not to run the engine. The harmonic balancers function is to counteract the vibrations in the engine so damage doesn't occur. When it fails, it can cause premature wear on the bearings, or lead to major engine damage. If caught early enough, you should be able to install a replacement balancer and continue driving. If you would like help with this replacement, consider having an expert automotive technician from YourMechanic come to your home or office to perform the replacement for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: What does the system message notification mean?

If your car is equipped with an information center, you’ll occasionally see messages come across the screen. These range from things like maintenance reminders to information about problems with your vehicle’s systems. You should see the notification system...

Q: Check Engine Light; Code P1449

Hello. Code P1449 is for the hybrid battery overheating. Honda has issued a TSB 04-028 for this issue. You will have to take your car to the dealer, since the high voltage battery must be accessed for repair. Honda has...

Q: how do I change an external harmonic balancer?

You will have to remove the center bolt. Once the bolt is removed, then using a harmonic pulley puller and locking the puller to the three bolt holes and running the center bolt in until the pulley and harmonic pulley...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...