Symptoms of a Bad or Failing Crankshaft Seal

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Cost of Replacing a Bad or Failing Crankshaft Seal

If your car is reaching high mileage or is experiencing oil leaks, it may be time to replace the crankshaft seal. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Front Crankshaft Seal Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 Jeep Grand Cherokee $148 $28.58 $119.00 30% $211.33
2004 GMC Envoy XL $179 $32.48 $147.00 30% $258.23
2014 Ford Transit Connect $162 $14.74 $147.00 32% $240.49
2004 BMW 645Ci $328 $124.78 $203.00 24% $436.53
2007 Mercedes-Benz CL600 $128 $15.85 $112.00 31% $187.85
2009 Porsche Cayenne $569 $85.71 $483.00 31% $827.46
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How to Diagnose a Bad or Failing Crankshaft Seal?

crankshaft seal

The crankshaft seal is the seal located on the front of the engine that seals the end of the crankshaft with the timing cover. Most crankshaft seals are made of rubber and metal and are round in shape. They are usually installed in the front timing cover and seal the end of the crankshaft as it rotates. While they are a relatively simple component, they serve an important purpose in keeping the oil that is constantly being used and tossed by the crankshaft as it rotates from leaking out of the engine’s crankcase. When they fail they can cause leaks which can make a mess, and if left unattended, can put the engine at risk of serious damage. Usually a crankshaft seal will display a few symptoms that can alert the driver that there may be an issue that should be serviced.

High mileage

If your vehicle is approaching high mileage, perhaps upwards of one hundred thousand miles, then the crankshaft seal may be approaching the end of it’s recommended service life. All manufacturers have a recommended service interval for most of the components on a vehicle. Servicing the crankshaft seal according to the recommended service interval can prevent the seal from failing in the first place, which can cause other problems.

Oil leaks

Oil leaks are the most common symptom of a problem with the crankshaft seal. If the crankshaft seal dries out, cracks, or breaks, it can cause an oil leak. Small leaks can cause oil to accumulate on the undersides of the engine, while larger ones may produce a drip of oil from the front of the engine.

The crankshaft seal is mounted behind the engine’s main crankshaft pulley, so servicing it requires the removal of the belts and crankshaft pulley and harmonic balancer before it can be accessed. For this reason, if you suspect your crankshaft seal may be leaking or near the end of its service life, have the vehicle inspected by a professional technician, such as one from YourMechanic. They will be able to look over your car and determine if it needs a crankshaft seal replacement.

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Recent Front Crankshaft Seal Replacement reviews

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YourMechanic Front Crankshaft Seal Replacement Service

Average Rating

4.8/5

Number of Reviews

96

Rating Summary
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Chris

19 years of experience
1126 reviews
Chris
19 years of experience
Have to say this mechanic is awesome and very professional. He helped me with my car that was sold to me fraudulently and he found the problem. Thank you again Chris for your time and your knowledge.
2001 HONDA CIVIC - FRONT CRANKSHAFT SEAL - ANAHEIM, CALIFORNIA

Michael

26 years of experience
21 reviews
Michael
26 years of experience
Michael was on time (showed up early, actually) and he worked pretty fast and explained and showed me everything he'd done.
1998 MERCEDES-BENZ C230 - FRONT CRANKSHAFT SEAL - SILVER SPRING, MARYLAND

Robert

37 years of experience
14 reviews
Robert
37 years of experience
It would be best for Robert to comment on the whole ordeal. I feel that Robert is an asset to your company. I would let him work on my autos any time knowing full well the job would be done right.
2000 NISSAN FRONTIER - FRONT CRANKSHAFT SEAL - VANCOUVER, WASHINGTON

Tyrone

6 years of experience
61 reviews
Tyrone
6 years of experience
Tyrone is an excellent mechanic that is clearly familar with Honda's. He commicated throughout repars, arrived before appointment and thoroughly cleaned up afterward.
2005 HONDA CR-V - FRONT CRANKSHAFT SEAL REPLACEMENT - HUNTINGTON BEACH, CALIFORNIA

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