Question about 1999 Ford Explorer

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Rear main seal

Must you drop the tranny to replace rear main seal in 99 ford explorer?

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THE REAR MAIN IS WHAT IS CALLED A FULL CIRCLE SEAL, SO YES THE TRANS AND FLYWHEEL MUST BE REMOVED, U WILL ALSO NEED THE SPECIAL FORD SEAL INSTALLER, WITHOUT IT THE SEAL WILL MOST LIKELY LEAK SOONER AFTER INSTALLATION.

Posted on Jan 24, 2009

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Automatic transmission in ford windstar keeps blowing out the main seal


replace torque converter seal. common issue around 200,000km. its a big job. 5hrs labor if they know what they are doing. also replace rngine rear seal at the same time since the tranny is out. its only $30 extra so why chance having to remove the tranny again :)

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My ford transmission has no leaks that i can see but i have to put transmission fluid in once a week??????????????? it runs fine but where is the fluid going?


It could be the rear main seal on the transmission where it mates to the motor. The motor may be burning off the leaking fluid before you can spot the leak. It could also be leaking out of the shaft seal as well, but you should be able to see tranny fluid all over the underside of the back of your car. You should be able to see it if its leaking from the rear main too, but like I said the motor could be burning it off before you spot it.

How much tranny fluid per week are we talking about? The rear main seal would require you to pull the tranny and then you pop the seal in, not too hard of a job unless you have a transfer case. Doing it in your driveway is not feasable tho because a tranny weighs a lot and I do not think you want to balance it on your chest in your driveway.

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1 Answer

How can i change the real main seal of a 1976 ford explorer i have to drop the transmision or can i do it from in side the oil pan


YOU WILL HAVE TO EITHER DROP THE TRANSMISSION OR ATLEAST MOVE IT OUT OF THE WAY TO GET TO THE REAR MAIN

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I need to replace the rear main seal on my 95 chevy pickup with a 350. do i need to drop the tranny?


Yes, either pull the trans or pull the engine. No way to get in there with out having one of the two out!
FYI it's very rare for a rear main on that engine to leak, Most all of the time it's the oil pan gasket or coming from higher up like a valve cover or the intake gaskets!

Oct 21, 2009 | 1995 Chevrolet K1500

1 Answer

How hard is it to replace the rear main seal in a '87 Samurai?


Is it a 4x4 if it is you would have to seperate the tranny from transfer case and drive shaft tp change out seal.If not just drop the drive shaft and replace seal.We are talking about the rear seal at the end of the tranny.

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1 Answer

Finding drain plug on a 1998 ford explorer


Could possibly be the pan gasket. The other things that may be your leak would be the rear main seal or the front crank seal. If the oil is coming out from the rear of the oil pan then it is most likely the rear main seal. If you have high mileage on the vehicle in excess of 100,000 miles this becomes even more of a possibility. The front crank seal will leak at the back side of the crankshaft pulley and blow back towards the rear of the engine. I would vebntire to say it probably is the rear main. To replace the rear main you will need to remove the tranny and the flywheel and then the retaining plate for the rear main seal. Unfortunately Ford went to the one piece deal years ago. If you need more assistance please feel free to ask any questions you may have. We are all here to help you with all questions. Good luck.

Mar 15, 2009 | 1998 Ford Explorer

2 Answers

Oil leak out the rear main seal on a 2000 ford explorer


First, the easiest way IS to remove the transmission, it is a one piece seal, if it were a 2 piece, you would need to remove the oil pan and Rear Main Bearing Cap which in my opinion is alot tougher. When installing the new seal, make sure the the end of the crankshaft is clean of debris, lube the seal before sliding it over the end of the crankshaft to ease installation and some like to apply a thin coat of high temp sealant to the outside surface of the new seal to ensure no leakage. When reinstalling the flywheel/flex plate, proper torque is key because you dont want it working loose and having to remove the transmission again.

Mar 03, 2009 | 1999 Ford Explorer

1 Answer

1999 ford expedition - rear main seal leaking


I don't know why your mechanic needs a picture of the seal. Here is what you will need to do. The tranny will need to be removed because your vehicle has a one piece real seal. After you remove the tranny remove the flywheel then you have access to the rear main seal. If you have never removed a tranny leave it to someone capable of the job. You will need many tools to remove the tranny and a little muscle here and there. It is an easy process for a mechanic, but labor intensive.

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