Service and Cost
Typical Cost
The cost to replace or repair a front crankshaft seal can vary depending on several factors, including the make and model of the vehicle, labor rates in your area, and whether you choose to go to a dealership or an independent mechanic. Here's a general breakdown of the costs involved:
1. Parts Cost: The front crankshaft seal itself typically costs between $15 to $45. However, the price can be higher for certain vehicles, especially luxury or performance models.
2. Labor Costs: Labor is the more significant part of the expense when replacing a front crankshaft seal. This is because accessing the seal often requires removing several components, such as the timing belt or chain, pulleys, and possibly the engine cover. At $125 per hour, labor typically runs between $250 to $375 (2-3 hours of work).
3. Total Cost: Combining parts and labor, the total cost to replace a front crankshaft seal typically ranges from $265 to $420. However, for some vehicles, especially those with more complex engine layouts, the cost can reach up to $500.
4. Additional Repairs: Sometimes, additional repairs or replacements may be necessary if other components are worn or damaged. This can increase the overall cost.
5. DIY Option: If you have the necessary skills and tools, you might consider replacing the seal yourself, which can significantly reduce costs. However, this job can be complex and time-consuming, so it's important to be confident in your abilities before attempting it.
Always get a detailed estimate from your mechanic before proceeding with the repair, and consider getting multiple quotes to ensure a fair price.
Typical Service Procedure
Replacing or repairing the front crankshaft seal typically involves several steps and components to ensure the job is done correctly. Here's what is generally included in the process:
1. Diagnosis and Preparation
Diagnosis:Our technicians will confirm that the front crankshaft seal is the source of the oil leak through a thorough inspection and testing process.
Preparation:We gather all necessary tools and parts, including a new crankshaft seal, sealant (if required), and any other components that might need replacement during the process.
2. Removal of Components
Belt Removal:We remove the serpentine or timing belt, depending on your vehicle's configuration, to access the crankshaft pulley.
Crankshaft Pulley Removal:Using specialized tools, we remove the crankshaft pulley or harmonic balancer mounted on the crankshaft.
Seal Removal:Our technicians carefully remove the old seal using professional-grade tools, ensuring no damage to the crankshaft or surrounding area.
3. Inspection
Inspect the Crankshaft:We thoroughly check the crankshaft for any wear or damage that might have contributed to the seal failure.
Inspect Related Components:Our team examines the timing cover, oil pan, and other nearby components for signs of wear or damage.
4. Installation of New Seal
Prepare the New Seal:We properly lubricate the new seal with engine oil or specified lubricant to ensure optimal installation.
Install the New Seal:Using professional tools, we carefully press the new seal into place, ensuring proper alignment and seating.
5. Reassembly
Reinstall the Crankshaft Pulley:We precisely align and secure the crankshaft pulley or harmonic balancer back onto the crankshaft.
Reinstall Belts:Our technicians reattach the serpentine or timing belt with proper tension and alignment.
6. Testing
Run the Engine:We start the engine and perform comprehensive testing to ensure there are no leaks around the new seal.
Final Inspection:Our team conducts a thorough final inspection to verify proper assembly and seal integrity.
7. Additional Considerations
Fluids:We top off any fluids that may have been lost during the repair process.
Other Repairs: During the process, if we identify other issues, such as damaged belts, worn pulleys, or leaky gaskets, we discuss repair options with the customer to address these concerns during the same service visit, saving time and potential future costs.

What is a Front Crankshaft Seal and What Does It Do?
The front crankshaft seal, also known as the front main seal, is a component in an internal combustion engine. It is located at the front of the engine, where the crankshaft extends out of the engine block. The primary function of this seal is to prevent oil from leaking out of the engine at the point where the crankshaft exits the engine block.Here are some key points about the front crankshaft seal:
1. Location: It is situated at the front of the engine, typically behind the main crankshaft pulley or harmonic balancer. This position allows it to seal the area where the crankshaft protrudes from the engine block.
2. Material: The seal is usually made from durable materials such as rubber or silicone, which can withstand the high temperatures and pressures found in an engine environment.
3. Function: Its main purpose is to keep engine oil contained within the engine, preventing it from leaking out. This is crucial for maintaining proper lubrication of engine components and ensuring efficient engine operation.
4. Symptoms of Failure: If the front crankshaft seal fails, it can lead to oil leaks at the front of the engine. This can result in oil loss, which may cause engine damage if not addressed. Common symptoms of a failing seal include visible oil leaks, oil spots under the vehicle, and a low oil level.
5. Replacement: Replacing a front crankshaft seal can be a complex task, often requiring the removal of several components, such as the timing belt or chain, crankshaft pulley, and sometimes the timing cover. It is generally recommended to have this repair performed by a professional mechanic.Maintaining the integrity of the front crankshaft seal is important for the overall health and performance of the engine. Regular inspections and timely replacement of the seal, if necessary, can help prevent oil leaks and potential engine damage.
Signs of a bad Front Crankshaft Seal
The front crankshaft seal, also known as the front main seal, is a critical component that prevents oil from leaking out of the engine where the crankshaft exits the engine block. Over time, this seal can wear out or become damaged, leading to potential issues. Here are some common signs of failure for the front crankshaft seal:
1. Oil Leaks: The most obvious sign of a failing front crankshaft seal is an oil leak at the front of the engine. You might notice oil spots or puddles under the vehicle, especially after it has been parked for a while.
2. Oil on the Engine or Undercarriage: If the seal is leaking, you may find oil splattered on the engine or undercarriage. This can occur because the crankshaft spins at high speeds, causing leaking oil to be thrown around.
3. Low Oil Levels: A leaking seal can lead to a noticeable drop in engine oil levels. If you find yourself frequently needing to top off the oil, it could be due to a seal leak.
4. Burning Oil Smell: Oil leaking from the front crankshaft seal can drip onto hot engine components, such as the exhaust manifold, leading to a burning oil smell.
5. Engine Performance Issues: While less common, a severe oil leak can lead to low oil pressure, which may cause engine performance issues or trigger the oil pressure warning light on the dashboard.
6. Visible Damage: If you have access to inspect the seal directly, visible cracks, tears, or other damage to the seal itself are clear indicators of failure.
7. Unusual Engine Noises: In some cases, a failing seal might cause unusual noises due to oil starvation or contamination of the timing belt or chain area.If you suspect a problem with the front crankshaft seal, it's important to address it promptly. Ignoring the issue can lead to more serious engine damage due to oil loss and potential contamination of other engine components. A professional mechanic can diagnose the problem and replace the seal if necessary.
How It Works
- Get a quote online or set-up a time to have your vehicle looked at.
- Pick time slots that work for you, easily, online.
- We will confirm appointments and send reminders.
- Our mechanics bring everything that is needed to you.
- All you have to do is provided a safe area for the work to be performed.
What we need from you
- A safe place to work on your vehicle
- No working on the side of busy roads
- No working on unstable or steep surfaces.
- We do not perform repairs during severe weather.
- Authorization from a property owner or management.
- Repair work done in a parking lot or at your requires permission.
- We do not do repairs in areas restricted by law.
Common Questions
Service Area
Our primary service area is greater Grand Rapids and includes Comstock Park, East Grand Rapids, Grandville, Kentwood, Walker, and Wyoming
Our secondary service area is provided by our Belding location and includes: Belding, Greenville, Ionia and the sorrounding areas.
Contact us if you have any questions about where we provide services.