Skip the auto shop - Our mechanics make house calls

Q: I have a bad harmonic balancer causing the serp to lose tension and Ground Control to Major Tom.

asked by on

The web-app didn't give me the option of selecting the exact model of my car. It's a 1997 Lincoln Town Car Signature Series V8 Auto. I had a mechanic look at it, and he told me that he wasn't sure which size harmonic balancer I would need until he took it off (harmonic balancer, that's right up there with flux capacitor!) He showed me where the "ridges" had worn away, or fallen off (why aren't they machined out of one piece of steel?!) and explained that the ridges had simply fallen off or broke off in pieces. He then proceeded to call his go-to auto parts store and they said they had two different sizes, and the cost difference is $98.99 for one, and $59.99 for the other. Can I use either size?Here are the two sizes, for the $98.99 one: Oil Seal Diameter: 1.875 Inch O.D. - Match To Original - Crank Bore (In): 1.250 Inch and the $59.99 one: Oil Seal Diameter: 1.75 Inch O.D. - Match To Original - Crank Bore (In): 1.249 Inch. Would the cheaper one work? What's the difference?

My car has 172000 miles.
My car has an automatic transmission.

A: You should match to the original one. I loo...

You should match to the original one. I looked up the part and the factory only lists one part number. I can only suggest getting the one that matches the one that came off. If you would like a second opinion- YourMechanic would be happy to provide a diagnosis of your vehicle and replace the harmonic balancer at your home or office.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can't read OBD code with my scanner.

These aftermarket type scanners may not access every vehicle out there. When you get a cannot communicate issue this is most likely the OBD adapter and the vehicle may be incompatible or the vehicle has problems. You would need to...

Q: I just replaced my intake manifold , and my car is still shaking and won't accelerate quite right what should I do?

It sounds like you have a misfire. This can be caused by many things: a vacuum leak, ignition component failure, fuel system issues, etc. With a misfire, typically the Check Engine Light comes on to indicate that a trouble...

Q: Are crankshaft pulleys and harmonic balancers the same thing? I have a 1998 Buick Century custom and it is wobbling and making a loud noise.

Hi, thanks for writing in. On your vehicle, the pulley is actually manufactured into the harmonic balancer. If the pulley is wobbling, it would be best to have a certified mechanic, like those available at YourMechanic.com, take a look at...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.