Odd knocking sounds from under your car and engine misfires could indicate you need a new crankshaft.
But have you been delaying a replacement due to cost concerns?
Then, don’t wait any longer!
The crankshaft is responsible for converting the pistons’ up-and-down movement into a rotational motion that makes your car’s wheels move. Without it, your vehicle’s engine will perform poorly, which can snowball into costly repairs — or worse, a complete breakdown.
Let’s discuss the crankshaft replacement cost, the glaring signs of a bad one, and how you can save money on the replacement.
This Article Contains:
- How Much Does a Crankshaft Replacement Cost?
- Is It Worth Replacing the Crankshaft?
- 8 Warning Signs Your Car Needs an Urgent Crankshaft Replacement
- How Long Does a Crankshaft Last?
- Can You Repair a Bad Crankshaft Instead of Replacing It?
- Can You Replace the Crankshaft Yourself?
- How to Lower the Cost of Crankshaft Replacement
How Much Does a Crankshaft Replacement Cost?
Estimating crankshaft replacement cost involves several variables:
A. Range
The average cost of replacing a crankshaft is between $400 and $3,000.
This includes:
- Parts costs: $100 to $1,000
- Labor costs: $300 to $2,000 (charges range from $75 to $170 per hour, depending on the location and expertise of the mechanic)
NOTE: Replacing the crankshaft is time-consuming and sometimes takes up to 16 hours, increasing costs exponentially.
B. Factors Affecting Cost
Several factors can influence the total bill, such as:
- Vehicle make and model: The cost of parts and labor required for high-performance cars (such as a BMW M4) will be higher than for standard cars (like Honda Civic).
- Number of journals and engine cylinders: The journals on a crankshaft let the crankshaft rotate while keeping the engine’s moving parts aligned. For balance, all journals (an engine’s crankshaft usually contains two or more) may need machining, not just the damaged ones. The total cost will depend on the number of journals and cylinders in your car.
- Related repairs: In addition to replacing the crankshaft, you may need to install a new camshaft or crankshaft position sensor as these can affect fuel injection and ignition timing. Replacing a faulty crankshaft sensor will cost you an additional $180 to $240.
Other parts, such as the crank seal, connecting rods, rod bearings, and cylinders may also need replacement if they’re faulty. Installing these components can increase your final bill.
Is It Worth Replacing the Crankshaft?
Yes!
The crankshaft is the backbone of your car’s internal combustion engine.
It works alongside your camshaft and relies on the crankshaft position sensor to provide data to your car’s computer. The computer then uses this data to ensure your spark plugs ignite the fuel-air mixture at the right time for optimum engine efficiency.
If the crankshaft starts failing, it can lead to misfires and disrupt the car’s performance. Driving with a damaged crankshaft can also increase friction between moving parts, causing irreversible damage to the engine block or even complete seizure.
Getting a timely replacement lets you drive more efficiently and safely.
8 Warning Signs Your Car Needs an Urgent Crankshaft Replacement
Here are some common indicators that could point to a faulty crankshaft:
- Active check engine light
- Knocking or tapping sounds from under the car
- Increased engine vibration
- Low oil pressure readings
- Poor engine performance
- Engine misfires
- Excess carbon emissions
- An engine that is completely seized
How Long Does a Crankshaft Last?
With proper care and regular maintenance, a crankshaft can often last anywhere from 200,000 to 300,000 miles. However, the lifespan depends on driving habits and your engine’s condition.
Can You Repair a Bad Crankshaft Instead of Replacing It?
Yes, you can opt for a crankshaft repair if the damage is limited to worn or damaged bearing surfaces. A simple repair job, like polishing the journals, can cost around $270.
But sometimes, replacing the crankshaft can be more cost-effective.
For instance, in a standard four-cylinder car, replacing the engine with a used one is often more affordable than repairing the crankshaft. This is because a used engine, purchased from a trusted recycler and backed by a warranty, typically costs less than the extensive labor and precision work involved in a full crankshaft repair.
However, replacement is the only option for severely cracked or warped crankshafts.
Can You Replace the Crankshaft Yourself?
No, you shouldn’t.
Replacing a crankshaft is a complex process that requires special tools such as a crankshaft press or a disassembly tool. You also need repair expertise to align components and fix the bearings properly.
It’s best to call a professional mechanic to replace it for you.
Here’s how they’ll go about it:
- Remove the vehicle’s engine.
- Detach parts like the oil pan, timing cover, and cylinder head to expose the crankshaft.
- Disconnect rods and pistons from the crankshaft to remove it.
- Install the new crankshaft as per the torque specifications.
- Reconnect the rods and pistons to the new crankshaft.
- Reinstall the oil pan, timing cover, cylinder head, and engine.
- Test drive the vehicle to ensure everything works smoothly.
How to Lower the Cost of Crankshaft Replacement
Check out these tips to help you save on crankshaft replacement costs:
- Compare quotes from several mechanics or car repair shops for the best deal and pricing.
- You can opt for a used crankshaft in good condition (and backed by a warranty) as a cost-effective alternative to a brand-new one.
- Fix minor crankshaft issues early to prevent severe damage and costly repairs.
- Apply for a personal loan or secure auto repair financing. This can give you immediate access to funds and ensure timely repairs without further damage to your vehicle. Some auto repair shops also offer discounts or promotions, which can ease the financial strain.
Crankshaft Replacement Made Easy with AutoNation Mobile Service
A failing crankshaft can disrupt vehicle performance and, if neglected, cause extensive damage or even total engine failure.
If you suspect your crankshaft is causing trouble — contact AutoNation Mobile Service.
Our auto repair mechanics can come directly to you to diagnose and fix engine troubles. We’re available seven days a week and offer upfront pricing on all repair services.
Get a free quote and schedule an appointment for a hassle-free crankshaft replacement.