Can You Replace Rear Main Seal Without Removing Engine?

by | Last updated on January 24, 2024

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Yes

, you can ask a mechanic to fix it for you, but you will be surprise to know the rear main seal replacement cost. It will sweep your bank account like a broom. Usually, we will need to remove the transmission before reaching to the rear main seal.

Is it hard to change a rear main seal?

Since it is such

a difficult repair

, it’s usually not something you can do yourself and your mechanic has to charge a lot for. Replacing a rear main seal can be so expensive the cost to replace it may be more than you have to spend, or even more than your vehicle is worth.

How long does it take to replace a rear main seal?

Replacing a Rear Main Seal

However, the process to get to the rear main seal to replace it often requires removal of the entire engine and transmission from the vehicle, a job that can only be done by very skilled mechanics and even then can take

6-10 hours

!

How much should it cost to replace a rear main seal?

This seal ensures that engine oil does not leak out. If it starts to crack or otherwise malfunction, you will be left with an oil leak. You will pay

between $650 and $850

for this replacement. The labor should cost around $700, while parts are only about $35.

Does Rear Main seal Stop leak really work?


Yes

. Even though it is specially designed to seal rear main leaks, it also works better than a conventional stop leak on all other engine oil leaks. This includes the timing cover seal, cam seals, O-rings and other seals and gaskets.

Is it OK to drive with a rear main seal leak?

The

possibility of a very fast leak

is the biggest factor that makes it so dangerous to drive with a rear main seal leak. … A fast leak can lower your engine oil level to dangerous levels very quickly and dangerously low oil levels can lead to permanent engine damage.

What causes a rear main seal to fail?

It is also crucial to check your oil and change it as needed, as

low oil levels

can cause issues with the rear main seal. Excessive heat, old age, high mileage, infrequent use, and worn bearings can also be factors contributing to rear main seal failure.

Does a rear main seal leak oil or transmission fluid?

A rear main seal

leak will cause oil to drip from the bottom of the bellhousing at the front of the transmission

. If you have drips coming from in front of the bellhousing, locate those leaks, stop them and clean the engine. After a few hundred miles you can check again for leaks to see if you still have any.

Is Blue Devil bad for your engine?

BlueDevil contains no solid or particulate matter, and

will not clog or harm your engine

. It bonds to metal, aluminum, cast, alloy, or plastic, and it’s safe and easy to use.

What’s the best Rear Main seal Stop Leak?

  • Best Overall. Lucas Oil 10278 Engine Oil Stop Leak. Check Latest Price.
  • Best Value. ATP AT-205 Re-Seal Stops Leaks. Check Latest Price.
  • Honorable Mention. Liqui Moly Oil Leak Stop. Check Latest Price.
  • Honorable Mention. Bar’s Leaks Engine Repair. Check Latest Price.
  • Honorable Mention. BlueDevil Oil Stop Leak.

Is Blue Devil rear main sealer a permanent fix?

BlueDevil Rear Main Sealer from BlueDevil Products is

a guaranteed permanent fix for leaks

. … BlueDevil Rear Main Sealer seals better than average stop leaks on rear main seals and other engine oil leaks. One bottle treats up to an 8-quart capacity.

Is Blue Devil a permanent fix?

The BlueDevil head gasket sealer gives

a permanent alternative solution

in an inexpensive 2.9 pounds can. Save on time- Using a gasket sealer is so easy. You only need to pour the sealer into the radiator cap and all the leaks will be sealed in no time.

Is Stop leak bad for engine?

In the end, off-brand products could possibly damage your engine – we hear stories about it on a weekly basis. When you carefully follow the instructions for our engine, radiator or other stop leak products,

there is no risk of damage.

Can a rear main seal leak get worse?

Rear main seal

leaks tend to worsen when an engine has warmed to its standard operating procedure

. For this reason, a leaking rear main seal is often most evident in the minutes to hours after a vehicle has been parked for the day.

How long does it take for Blue Devil rear main seal to work?

Just be patient and give it

30-45 days

to work.

Can a rear main seal cause low oil pressure?

But

no it will not cause low oil pressure

.

Can overfilling oil cause rear main seal to leak?

Yeah,

overfilling will make the oil leak out

of the rear main! It is good you fixed it!

Does rislone rear main seal work?

Will Rislone Rear Main Seal Repair work on other oil leaks?

Yes

. Even though it is specially designed to seal rear main leaks, it also works better than a conventional stop leak on all other engine oil leaks. This includes the timing cover seal, cam seals, O-rings and other seals and gaskets.

Why is my new rear main seal leaking?

Is it the rear main seal that is leaking? … On most engines,

oil leaks can occur above and below the rear main seal

. It could be a leaking oil pressure sensor, oil pan gasket or galley plug near the seal that causes oil to come from the bell housing. Adding dye to the oil can help reveal where the oil is coming from.

Can I use Blue Devil Without removing thermostat?


Yes

. For a “perfect” flush, the thermostat needs removed.

Will Blue Devil Rear Main Sealer hurt my engine?

Is Blue Devil Bad for Your Engine? The answer

is a resounding no

. And if you are wondering about the safety of using other brands of rear main seal conditioners and stop-leak products like Bar’s Leak or Justice Brothers, don’t worry. They almost all use the same active ingredient.

Is it safe to use Blue Devil Oil Stop Leak?

BlueDevil Oil Stop Leak seals engine oil leaks permanently. It is non-clogging and will not harm your engine.

BlueDevil is safe and easy to use

and is compatible in gasoline or diesel engines.

Can you use Blue Devil Rear Main Sealer twice?


It is safe to repeat treatment if other seals leak in the future

. BlueDevil Oil Stop Leak – Additional Questions. 8. Can BlueDevil Oil Stop Leak be used to repair a valve cover leak and rear main seal leaks?

How long does Lucas Stop leak take to work?

It may take

400 miles or more

(mine took this long) for it to work itself into the seals and affected area’s. Don’t expect magic to happen after a few days. Continue to monitor and check your engine oil levels and top up when needed. Remember, as it takes time to work your engine may still leak hence check and top up.

How long does it take for Stop leak to work?

How long does it take to see results? We recommend you drive / idle the vehicle for

15 to 30 minutes

. In most cases the leak will be sealed instantly, but others will require up to 30 minutes. If the leak is not sealed in 30 minutes, a second application may be required, or mechanical repair may be needed.

Can you use stop leak more than once?

Usually you pour the entire contents into the cooling system, so

No you can’t

. Unless you can figure a way to filter it out of the cooling system to re-use it – in which case the cooling system/head gasket would leak again anyway.

Does Blue Devil Head Gasket work?

5.0 out of 5 stars Works.

Sealed My Gasket

. My head gasket has been leaking for over a year now and gotten progressively worse, to the point where I had to add a liter or more of water to the radiator after every trip. Then the engine wouldn’t start every so often, presumably because of the leak into the engine.

Diane Mitchell
Author
Diane Mitchell
Diane Mitchell is an animal lover and trainer with over 15 years of experience working with a variety of animals, including dogs, cats, birds, and horses. She has worked with leading animal welfare organizations. Diane is passionate about promoting responsible pet ownership and educating pet owners on the best practices for training and caring for their furry friends.