National average cost of a Flywheel Replacement for popular vehicles:
Avg. cost $84
What is a flywheel and how does it work?
A flywheel is a large flat metal disc that is bolted to the rear of an engine’s crankshaft in a vehicle with a manual transmission.
The flywheel helps to transfer the power of your engine to the transmission. It spins with the crankshaft and interacts with the clutch disc to engage the drive wheels. The flywheel stores energy to supplement engine torque and help to balance out the power stroke of each cylinder as it fires. And it helps to reduce engine vibrations. The flywheel also has a series of teeth cut into its outer edge. These teeth mesh with the starter, allowing the starter motor to spin the crankshaft during the startup process.
How do I know if my vehicle needs a flywheel replacement?
A flywheel that is worn or damaged will display a variety of symptoms, depending on what has gone wrong. When a clutch assembly wears out, the face of the flywheel will commonly wear out as well. The flywheel can also become warped from excessive heat. The teeth on a flywheel can also break off and prevent proper articulation with the starter.
If you notice one or more of the following signs, your vehicle might need a new flywheel
An unusual vibration or pulsing felt in the clutch pedal
The clutch “slips” during acceleration
Chattering or shaking when you engage the clutch
The transmission pops out of gear while you are driving
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There are 50 shops within 20 miles of your location.
Flywheel replacement is a fairly involved process. It requires complete removal of the transmission from your vehicle, among other things. If the service is being done at the same time that your clutch is being replaced, the added labor is not extensive.
To replace your engine flywheel, a technician will first need to lift and support your vehicle in the air for access. From there, the following general steps are performed
Remove any shields and guards for access
Disconnect and remove the driveshaft
Remove the transfer case (if so equipped)
Unbolt the transmission from the engine and remove the transmission from the vehicle
Disassemble the clutch assembly and remove it from the flywheel
Unbolt and remove the flywheel
Reassembly occurs in roughly the reverse order of disassembly, with a few exceptions. One exception is the need to bleed the clutch slave cylinder of air after the system is refilled with hydraulic fluid. Special alignment tools and procedures may be required to properly reassemble and install the clutch assembly. Any fluid lost must also be topped off.
OTHER QUESTIONS CUSTOMERS ASK
What causes a flywheel to fail?
A flywheel may fail due to overheating from exceeding a vehicle's rated towing capacity or overloading it past the GVWR. This leads to additional stress on the drivetrain, which ultimately can warp or crack the flywheel. Aggressive use of the clutch can also cause excessive wear to the flywheel.
How long should a flywheel last?
A flywheel should last 80K miles or more. The truth is, the lifespan of a flywheel - or any components related to the clutch in a vehicle with a manual transmission - is almost entirely dependent on driving habits. Aggressive use of the clutch, hauling heavy loads, or pulling a trailer that exceeds the manufacturer’s recommendation can all limit the life of a flywheel. On the other hand, if proper care is taken, a flywheel could last the lifetime of the vehicle.
Can you drive with a damaged flywheel?
Although you can sometimes drive with a damaged flywheel, this will often lead to more serious damage to surrounding components. If a flywheel is warped and vibrating, for example, it could ruin the engine crankshaft or rear main bearing in the engine - which is far more expensive to replace than just a flywheel.