CutthroatSlam
Senior Member
Every 60K miles. I’m sure that you realize that the 1 million mile Tundra was at the extreme far right on the Bell Curve.
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who here has the highest milage 5th Gen?
- Thread starter dclark2171
- Start date
Every 60K miles. I’m sure that you realize that the 1 million mile Tundra was at the extreme far right on the Bell Curve.
Yes, not many vehicles ever reach that kind of mileage, mostly because they are short-tripped and under-maintained until worn out, crashed, etc.
There was a member here at one time who was closing in on 800k miles on his 3rd gen 4Runner the last I heard. All original drivetrain, maintained by the book at a Toyota dealer. I believe he worked in the oil industry, and traveled extensively in the Gulf states.
What I'm saying is that your transmission might not need to be replaced. Who knows if a used one has been maintained and would be better than the one you have?
Good luck with whatever you decide.
CutthroatSlam
Senior Member
Time permitting, I do all the service and repairs on this truck. I have the experience to know when an automatic transmission is going. Also had a friend who had just replaced a 4L85e in a Chevy truck confirm the issue. Then I had my local mechanic do the same. All conclusions were the same: it’s going.
4R Anniversary@JP
Junior Member
That is truly impressive for the car and yourself! Were all those miles yours and how long did it take to rack up all of those miles? Good luck until 400/500K!
CutthroatSlam
Senior Member
All the miles are ours since original new purchase in September 2014. It is my wife’s vehicle and she is older than me and retired. We have homes in SoCal and a ranch in the Bitterroot Valley of Montana, so she is back and forth between those on a regular basis. In addition, she is an avid geocacher and camper, so she is regularly on long road trips. I need a gps tracker to know where she is while I am head down in work.
Now that my wife has two 4Runners, with both of them up in Montana for the moment, it is difficult to stay up to date on 5K mile oil changes. Have had the local mechanic do at least one. That said, this 2014 lived on 10K mile oil changes up til 355K miles, which flies in the face of Car Care Nut’s claims. I’ll note that 98% of the miles are highway at higher speeds which is the least problematic for build-up of sludge. I did start using using Valvoline Restore & Protect 0w20 synthetic oil, which is supposed to clean the pistons and rings…over extended use.
We also had a rear main seal leak at 360K miles, but it was corrected with a bottle of Blue Devil Rear Main Seal Leak Restore. That said, the seal will be replaced when the transmission is replaced.
Have you bore scoped your cylinder walls or timing chain?
CutthroatSlam
Senior Member
Nope, no reason to. Engine running fine.
Just for curiosity reasons I did mine. Timing chain and related parts were shockingly clean. Cylinders had more carbon on top and on valves than I like but previous owner used cheap gas.
50thStateTRDPro
New member
These engines work hard for years with regular maintenance. My 2018 TRD Pro 4Runner is similar to yours, having just 15400 miles on it. Hardly used as my 2015 Tundra is my daily driver and has 95K miles.
CutthroatSlam
Senior Member
Nope, no reason too. Timing chain will make a specific noise. Engine is running like it did day one. Replacement transmission is running like day one, so that was the right call to replace it. Odometer is at 370K now after a drive down from Stevensville, Montana to Fullerton, California via Sacramento where she picked up a salvage drivers seat to replace the worn one in the 2014 4Runner.
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Nice. These transmissions are pretty robust from what I read, what do you think caused the issue with yours?
I replaced the seat foam in my 2011, was not hard but pretty tedious-getting a replacement seat would have been much easier.
CutthroatSlam
Senior Member
Transmission was just wear. It made it 365K miles. $800 for a salvage replacement was a steal. $1,085 to remove old and install replacement was a steal, plus I got the leaking rear main seal replaced.
Where did you get your seat foam?
That really is an incredible price.
Genuine OEM Toyota Parts and Accessories Online - Toyota Parts Deal I already had hog ring pliers and hog rings. It's tedious but not difficult. I replaced all of the 2014 Tundra OEM covers so I knew what to expect. You can follow this video and it's very helpful-https://www.youtube.com/watch?v=Yi298Jv8xYE
This was my part number 71502-60280, yours may be different. $203 shipped after tax.
Sixthirteen
Junior Member
I got 16K on mine. Picked it up a few days ago. Just a baby. Its used, I am the second owner, envious of all of you with lots of mileage.
SurfToy
Member
Sonoran_Desert
Member
Even if engine, tranny and all the rest last to 400K+, don't all the seals, rubber hoses and other non-metal engine parts all start disintegrating after 20 years?
thatoneguy
New member
Maybe. Maybe not enough to matter. I know too many 25-30 year old vehicles still driving around on fully original drivetrain to think seals and rubber are guaranteed to fail at a certain age. Might be likely, but not guaranteed. My friend continues to daily drive an original 1996 4Runner, everything still seems totally tight and normal.
CutthroatSlam
Senior Member
The rear main seal on the 2014 started leaking at 360K. I poured a bottle of Blue Devil Rear main seal repair in it and that stopped the leak. We then replaced the rear main seal when we replaced the transmission and I provided OEM Toyota seals to the mechanic for install. We don’t have leaks on any other part of the engine.
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