Even though the parts won’t cost more than $100, the cost of labor is what makes the rear main seal repair very expensive. Mechanics will charge
between $500 and $1800 for the labor alone, with the average total cost of repair being $1100
.
Is a rear main seal leak worth fixing?
The rear main seal is found at the back of the engine between the engine and the transmission, which seals the crankshaft’s back end from leaking.
It is an expensive fix
because, most times, it requires removing the transmission or dismantling the engine.
Is it OK to drive with a rear main seal leak?
The speed of the 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
. As we just mentioned, your rear main seal is in a place that gets a lot of oil thrown at it and has the added wear of the crankshaft spinning inside of it.
How do I know if my rear main seal is leaking Silverado?
The best way to prove that you’ve got a rear main seal leak is the
check if the engine side of the flexplate or flywheel is oily
. If the rear main seal is leaking on your engine it will drip oil onto the flexplate or flywheel and sling oil around the bellhousing.
Can you replace a rear main seal without removing the transmission?
It is certainly possible to replace your rear main seal yourself, without removing the transmission, if you have some knowledge of cars, understand your engine, and have the tools
. It is usually professional to perform this type of procedure.
How many hours 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 do I stop my rear main seal from leaking?
Does Bluedevil rear main sealer work?
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.
How much does a rear main seal leak cost?
Even though the parts won’t cost more than $100, the cost of labor is what makes the rear main seal repair very expensive. Mechanics will charge
between $500 and $1800 for the labor alone, with the average total cost of repair being $1100
.
How long will a leaky rear main seal last?
Most leaks will stop within
100 miles or 2 days of driving
. To prevent future leaks and for outstanding preventive maintenance, install Rear Main Seal Repair every 5,000 miles or with every oil change.
Does Rear Main seal Repair work?
Will Bar’s Leaks 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.
What causes a rear main seal to go out?
Extreme operating conditions like extraordinarily high heat or foreign chemicals
can also cause rear main seal failure. High heat can cause seals to get brittle or hard and chemicals can cause reactions with the materials some seals are made from.
Will 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.
Can a rear main seal leak cause transmission problems?
Being made of rubber, it can get corroded or weakened with time and normal use.
If it does start to leak, then it can lead to major problems, usually within the transmission
.
Does a rear main seal leak oil or transmission fluid?
The rear main seal prevents oil from leaking past the spinning crankshaft flange
. This leak is a common problem as an engine wears. If either of these seals is leaking, the engine and the transmission must be separated, and a new seal installed to repair this leak.
When did Chevy go to a one piece rear main seal?
Chevy converted to the one-piece rear main seal
around 1986
and incorporated several new features in the redesign.
How much does it cost to replace engine seals?
It depends on the model of your car how much you need to replace the valve seal. According to most estimates, you can expect costs
between $900 and $2000
. Part costs less than $100, but the cost is mainly linked to hiring a mechanic.
Is it hard to replace 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 for Blue Devil rear main seal to work?
Just be patient and give it
30-45 days
to work.
Does Blue Devil Stop leak work?
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. Our stop leak additive solution is guaranteed to keep your leak sealed even after miles of driving or your money back.
Can I use BlueDevil twice?
Yes. It is possible to use the blue devil head gasket sealer more than once
. Due to the fact that this product does not contain petroleum distillates, you may use it more than once if a leak occurs after using it for the first time.
What is BlueDevil used for?
BlueDevil Head Gasket Sealer is your head gasket repair solution as it will
repair and seal leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs
. BlueDevil contains no solid or particulate matter and will not clog or harm your engine.
What is the difference between BlueDevil Oil Stop Leak and rear main sealer?
Answer: According to a Blue Devil representative,
the Oil Stop Leak is simply more concentrated than their Rear Main Seal product
and will stop all types of leaks including rear main seals. They added, that it is not necessary nor necessarily beneficial to add Rear Main Seal in conjunction with the Oil Stop Leak.
