Question: Is It Worth Fixing A Rear Main Seal?

What happens if you don’t fix rear main seal?

The rear main seal is a crucial part of the oil and engine involved with the inner workings of your vehicle.

Without this working correctly, the transmission won’t run smoothly, and your engine will falter..

How long can you drive with an oil leak?

A: It’s always advisable not to drive if your vehicle has an oil leak, but short distance drives, less than 10 miles, are not as risky when it comes to lowering your oil levels to a dangerous point.

Why do rear main seals fail?

Without a regular oil bath, your rear main seal can become dry and hard causing it to not seal properly around the rotating crank shaft. … Things like sand, salt or road grime can cause premature failure of your rear main seal from the outside in. There are many reasons you should regularly change your engine oil.

How many hours does it take to replace a rear main seal?

Labor time guides say approximately 7.5 hours.

Does BlueDevil rear main sealer work?

I also checked under the engine and transmission but didn’t see any indication of any oil leak. So, I must say that this BlueDevil Rear Main Sealer really works. I cannot say for how long, but for now, I’m very satisfy with the results. … I risked a few bucks to purchase this product and there is NO MORE OIL drips.

Can you drive a car with a bad rear main seal?

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.

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.

Is Stop Leak bad for engine?

Oil leak stop additives by themselves are not bad for engines. … If you go the additive route then get Lucas Engine Oil Stop Leak, if that doesn’t work I would change the oil to a high mileage and add the Lucas stuff in, but don’t overfill the crankcase with too much fluid that will cause oil to leak out.

How much does it cost to fix a rear main seal?

According to national averages gathered by Repair Pal, the cost for a rear main seal repair ranges from $659 to $836. These totals are based on a combination of labor costs, which typically range from $624 to $789, and parts costs, which respectively range between $35 and $47.

Does Rear Main Stop Leak work?

The thicker oil can fill in the gap between the seal and the crankshaft, and could slow the leak down. … 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.

Does Blue Devil ruin your engine?

4 Answers. Adding “Blue Devil” sealer or any other non-approved chemicals to a motor vehicle is not necessary, a waste of money, can be dangerous (destructive) to the engine and may void the new car warranty.

Is Blue Devil Rear Main Sealer bad for your 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.

Do you have to drain oil to replace rear main seal?

No reason to drain any oil! I’ve done 4 rear main replacements and there was never once an issue with oil in the pan.

Can you replace a rear main seal without removing the transmission?

Generally, there is no need to remove the battery, as you are not going to remove the transmission. But, whenever you think about how to replace a rear main seal without removing the transmission, for the sake of security, take off the battery. … It will give you enough room to reach the rear main seal.

How do you know if you have a rear main seal leak?

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.

What is the best additive for a rear main seal leak?

If you’re looking for universal protection, then Lucas Oil 10278 Engine Oil Stop Leak is the best engine oil stop leak product on the market. Customers who want to stop leaks and save money should use ATP AT-205 Re-Seal Stops Leaks.