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Can you use an oil stop leak to fix an rear main seal leak?

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2015-07-15 21:14:00
2015-07-15 21:14:00

rear main seal must be replaced. also, is it leaking because the crankcase is holding pressure? your PCV is supposed to prevent that, to keep the seals from bolwing oil. if it got clogged, the rear main was the first to give, but wont be the last. once a seal blows ANY oil it is all done. Is PCV clogged? Are other seals leaking. Replacing seal not complex, but plenty time-consuming. The transmission is backed out or removed completely. The torque converter or clutch is disconnected from the flywheel or driveplate, and the flywheel is removed. the rear main seal is removed and new one drifted in. 3 hours in a shop. good time to replace clutch or torque converter if problems there, too.

Oil stop leak is not a versatile chemical. It can do as many bad things in there as it can do good things. Most people will tell you they have never used it and gotten the result they hoped for.

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There are some oil additives you can get, that might stop the leak. But if the leak has developed, the only way to fix it is to replace the seal.

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I have been doing transmission work for about five years and in that time the only way I have ever stoped a rear main seal leak is to remove the transmission andflywheel. There are no bolts to tighten.

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You will have to remove the oil pan and the rear main cap and then install a new seal.You also need to make sure the PCV valve is working / positive crank case venalation.Make sure when you get it apart that there is no groove cut into the crankshaft are it will not hold a seal.If the crankshaft main bearings are worn, Then it may still leak oil from the seal.GOOD LUCK.

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It could be something simple and inexpensive like a valve cover gasket or something more expensive like a rear main seal leak. You could try some stop leak but it is better to have it looked at by a mechanic.

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No, probably not. Engine oil stop-leak would be more likely to help, however that is a temporary fix and I would not recommend it. Just replace the seal.

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A 2001 Ford escape differential leak is usually caused by a bad seal. Replace the differential seal. The new seal should stop the oil leak.

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Only by replacing the seal. Just dive in and do it, waiting will only make the problem worse.

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try using power sterring stop leak, if they doesnt work, find out what is leaking, and replace the worn hose or broken seal

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try castrol oil stabilizer - it will stabilize the oil and reduce the leak.

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The question is referring to pour in type cooling system sealers such as Stop-Leak. If the radiator itself is leaking Stop-Leak will likely come right out as it is designed for small seal and gasket sealing.

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something is wrong with the seal. take it to a shop and have the seal replaced

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You repair or replace the failed part, seal, or gasket.

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Repair the pipe of fixture to stop your leak.


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