Anyone need to replace their rear main seal yet?

[weeeee]

Had a few questions for those who consider they use their 5th gens fairly regularly.

I have about 36K miles currently on the truck. Oil changed frequently, every 5K. Recently brought it in for service and discovered my rear main seal shit itself. No shavings in the pan, oil came out fine so the seal was simply replaced, and I was told to keep an eye on it. Hoping the problem doesn't occur again because it might be a sign of a worse problem. Anyone else have theirs replaced yet?

[MENTION=66389]BlackWorksInc[/MENTION]?

 

[BlackWorksInc]

I've heard of them leaking, but no kidding on "shit itself" haven't seen that one that bad on such a low mileage vehicle before.

 

[Raymich24]

I snapped a photo of my rear main and put it on antmans oil change write-up page 42. I have 8k miles on my 2016 but something tells me my rear main will look like yours at 36k. Gonna keep an eye on it and make sure I don't miss the warranty window.

 

[j0sh_]

Wouldn't it fall under the 60k mile power train warranty?

 

[Raymich24]

Yes it should. My oil levels are looking good when I check, but I will be interested to hear what the dealership tells me. My opinion is this shouldn't be happening already. I will update in a few weeks.

 

[Ghostrider]

exactly - this is not "normal" under any circumstances - unless the engineer was previously employed working on sports cars in England

 

[dot_tom]

[MENTION=44305]weeeee[/MENTION] looks like my 4runner has joined the club [emoji2359] 52k, not sure how long it’s been leaking.

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[weeeee]

[MENTION=44305]weeeee[/MENTION] looks like my 4runner has joined the club [emoji2359] 52k, not sure how long it’s been leaking.

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Ouch. At least yours looks like it was caught before it became a major issue judging by the level of wet oil- not that that is a proper gauge by any means. Sucks that this is happening on such a routine basis on relatively low mileage vehicles.

 

[dot_tom]

Ouch. At least yours looks like it was caught before it became a major issue judging by the level of wet oil- not that that is a proper gauge by any means. Sucks that this is happening on such a routine basis on relatively low mileage vehicles.

I'm shocked there is so much going on with these rear main seals. Quick google search shows quite a few people with this issue.

I cleaned off the oil and drove about 50 miles and this is how much has built up. Might be worse than this picture looks. Now I have to go to the dealer. Wish me luck.

 

[arehman11]

This is really making me consider purchasing an extended warranty. Although, I wonder if the extra weight you guys are carrying could be a factor?

 

[dot_tom]

This is really making me consider purchasing an extended warranty. Although, I wonder if the extra weight you guys are carrying could be a factor?

I doubt the weight is the issue. I an running 4.56 gears which takes the strain off the engine. I just recently added a rear bumper. My additional weight is no more than 4 adults riding in a stock 4Runner.


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[4boer2]

How much should I expect to spend for this? 2012, 150k

 

[Okusputokus]

Mine had been leaking the last week or so but it STOPPED. I do believe it was debris that got up there during a deep water crossing. I had mud up over the hood so I'm betting something got in between the flywheel and RMS until it worked its way out. Still keeping an eye on it but it hasn't leaked in a couple days. I had it scheduled to get RMS replaced and my shop told me $800.

 

[pedroridesagain]

70,000-ish on the clock and found a spot in the driveway this morning. Disappointing.

 

[alphabeast]

I have 2014 with 67k and just recently had mine replaced. I was just outside my extended warranty and the original quote was around $1100. The local dealer here in Boise, ID went to bat for me with Toyota and I ended up only paying $150 which was amazing. Probably the most positive dealer experience I have ever had. The oil drip probably started about 2 years ago and slowly got worse. I even tried to change to a "thicker" 0w20 extended mile oil and nothing changed.

 

[DougR]

Why Replace Seal?

I circled a black plastic cover-plate on the bell housing in this image. Dust embedded in the damp metal surface below the cover-plate tells me there is no leak, only a negligible seep. Why would one consider replacing the seal when it isn't leaking and streaking? This appears to be similar to shock absorber misting, which is considered to be normal. What am I missing here? Obvious dripping warrants careful oil level monitoring because a torn seal can become a major leak quickly. If it costs $1100 to replace the seal, then speaking for myself, a leak would have to affect engine oil level before I considered replacing the seal. A drip pan is far cheaper. Would it be annoying? Yes, but my 20 year old Nissan Maxima had an occasional drip seal leak which stopped after awhile without doing anything about it except monitoring as needed and checking for a clogged or blocked PCV system.

 

[tls3601]

Surprised to see a rear main seal fail at such low mileage. Have the boys at the Tahara plant been slacking?

 

[yoyopawnshop]

not yet

 

[pedroridesagain]

I have 2014 with 67k and just recently had mine replaced. I was just outside my extended warranty and the original quote was around $1100. The local dealer here in Boise, ID went to bat for me with Toyota and I ended up only paying $150 which was amazing. Probably the most positive dealer experience I have ever had. The oil drip probably started about 2 years ago and slowly got worse. I even tried to change to a "thicker" 0w20 extended mile oil and nothing changed.

I just had the transmission fluid changed out by the dealer 5,000 miles ago. surely they would have noticed? Maybe not. Annoying either way. not ready for this bill around the holidays.

 

[T4R416]

A lot of the pictures you guys have sent on this post are definitely not “leaks “ and taken to Toyota or a dealership you will find it hard to be relaxed under any sort of warranty as they will just say it’s not leaking it is “sweating “ ... this doesn’t seem abnormal and definitely doesn’t warrant the $1100 price tag.