A Rear Main Seal Replacement cost in Crystal Lake in 2023

The average cost for a crankshaft main bearing seal with CarAdvise is $944 and the range is generally between $64 and $2122.

Get expert advice, find shops, schedule, approve, & pay for any service - guaranteed to be lower than in-store retail price.

Get your vehicle's inside scoop without the mumbo jumbo.

Lower than retail price

Guaranteed or 5% back

We've got your back

12k/12mo Warranty

Peace of mind

14-Day Assurance

AVERAGE COST IN Crystal Lake

A Rear Main Seal Replacement costs by shop in Crystal Lake.

CarAdvise Customers save an average of $189 on A Rear Main Seal Replacement.

POPULAR VEHICLES

Average cost of A Rear Main Seal Replacement for popular vehicle models in Crystal Lake:

Car Model

Avg. cost

$50

THE IMPORTANCE OF A Rear Main Seal Replacement

What is a rear main seal and how does it work?

As an engine runs, it circulates motor oil throughout the engine block to coat all of the internal moving parts. After oil lubricates the bearings and other components, it falls back down to the oil pan in the bottom of the engine to be recycled and pumped through the engine again. Many gaskets and seals help seal up the gaps between parts of the engine so that the oil stays inside the engine block where it belongs rather than leaking out.

One of these seals is called the rear main seal. Sometimes known as a crankshaft main bearing seal, it takes up the gap between the spinning crankshaft and the engine block or oil pan flange at the rear of the engine.

COMMON SYMPTOMS

How do I know if my vehicle needs a new rear main seal?

The primary sign of a bad rear main seal is an oil leak from the engine. Your engine might need this seal replaced if you notice one or more of the following:

Oil is leaking on the ground near the rear of the engine (front or right side of the engine compartment, depending on whether your engine is front or transverse mounted) or front of the transmission

Oil is leaking onto the ground, and it appears to be coming from the rear of the engine or front of the transmission

The rear of the oil pan or bottom of the bell housing is wet with oil

The engine is low on oil

This text is only for demo

FREQUENCY OF INSPECTION

How does a technician perform A Rear Main Seal Replacement ?

Rear main seal replacement requires significant access to your engine. In some cases, the engine might have to be partially or completely removed to allow access to the rear main seal. If this is necessary, repair times will be longer and include more steps.

To replace the rear main seal, a technician will generally perform the following steps:



  • Disconnect the negative battery terminal to cut power to the vehicle
  • Remove any shields, guards, covers, or ducts to gain access to the rear of the engine and front of the transmission
  • Remove any linkages, fluid lines, and wiring on the transmission
  • Support the transmission with a transmission jack, then remove the transmission mounting bolts
  • Remove the transmission
  • Remove the flywheel or flexplate
  • Remove the rear main seal
  • Install a new rear main seal
  • Reinstall the flexplate or flywheel
  • Reinstall the transmission and connect all components to the transmission
  • Reinstall any shields, guards, covers, or ducts that were removed
  • Reconnect the battery terminal
  • Start the vehicle and verify the repair by allowing the engine to warm up and observing for leaks

OTHER QUESTIONS CUSTOMERS ASK

Can I drive my car with a rear main seal leak?
Although a bad main seal will typically not cause your engine to run poorly, it will cause it to leak oil and can eventually result in ruining the entire engine due to lack of lubrication. Because of this, driving with a bad main seal is strongly discouraged.
Does the engine have to be pulled to replace the rear main seal?
It is common that either the engine or transmission (or both) needs to be removed to replace the rear main seal. Which one depends on the vehicle make and model.
Will stop leak fix a rear main seal leak?
There are many products on the market that are supposedly designed to "repair" leaking gaskets and seals, however these are often very short term fixes and many consumers report the products actually worsening the leak in the end. The only true and correct way to stop a rear main seal from leaking is to have it replaced by a qualified professional.

This is demo Question

This is demo Answer

Compare discounted prices upfront at over 26,000 shops nationwide.

Finding a trusted shop has never been easier. We've partnered with the largest brands in auto maintenance to give our customers the biggest network to choose from.

+ More

Join the world's largest consumer fleet.

Over 1.5 Million already have.

Questions? We've got answers.

Our digital platform is designed to make maintaining and repairing your vehicle a breeze – from conveniently scheduling services, finding shops in the area, approving work remotely or getting free expert advice so you can be confident about any decision.

There’s nothing to pay up-front; you simply only pay for repairs or services that you approve. 

Nope, no funny business here—just get the job done and pay for what you approve. It really is that simple.

With our handy nationwide network of over 26,000 shops to choose from and free sign-up – you can rest assured your car is in good hands. 

With CarAdvise, you don’t need a fleet of 100,000 cars to get an amazing deal on car services. Our discounted prices are guaranteed to beat any other retail options – so why spend more? On average customers save 15-40% when they choose us – that could mean hundreds saved in just one service job.

Learn More

At CarAdvise, we believe life is unpredictable and if you need to reschedule or cancel an appointment – no worries! We promise there’s never any penalty for missed appointments.

We’ve partnered with the best in the industry such as Firestone, Pep Boys, JiffyLube, Canadian Tire, NTB, Meineke, Tire Kingdom, AAMCO, Monro, FCA dealerships and many independent shops across the country.

Ready to join the party? Just a few clicks and you’ll be all set – create your account now. You can easily create your account here.

Just email us at [email protected] or give our friendly team a ring at (844) 923-8473 and we’ll be sure to lend you the helping hand you need.