EXPERT Mechanic Explains the Valley Plate Leak on Lexus GX460

Greg's Repair Shop in McAllen, Texas was able to sort out Sandy's Valley Plate Leak problem. I hope this brief explainer helps you understand this very common issue with Lexus and Toyota coolant leak problems.

[@anglers48]

Glad Sandy is getting all this TLC so it can continue running strong. Thanks for sharing.

[@CoastalGX]

Thank you!! I hope this helps someone. It was concerning at first.

[@nrguitar11]

Thanks for sharing this with us. This is some good info!

[@CoastalGX]

You’re welcome. I felt it may help someone or at least the enthusiasts who geek out like me. Lol.

[@usernamwdrama]

Thanks for this vid, Greg is a switched on fella, good stuff.

[@CoastalGX]

I may have to give him a call soon. I may have a leak in my radiator lol

[@XmissesbieberX]

Sandy for ever 💪. Love it

[@CoastalGX]

She gets a few more years lol..

[@bbrownjcc]

Just had this done on my 2014 LS460 FSport 130k miles...thank God the warranty covered it. Expensive job.

[@CoastalGX]

My extended warranty had just expired and I had to fork out the money 💰😭

[@daniellarroyo]

How much was it? I have to do mine. I'm a pretty good mechanic and have all the tools in my garage. I just want to know how much you paid, if you don't mind?

[@CoastalGX]

@@daniellarroyo $1600 with parts

[@johncolby7121]

How much was the cost?

[@Shawn-ky2tw]

@@johncolby7121 ???

[@JuanGutierrez-vm3iz]

Sorry Robert I didn’t know that Sandy was sick please take care her that she is the ones it take us to diferente adventures hope everything goes well god bless you and your family and Sandy

[@CoastalGX]

Thank you for the blessings, Juan. She’s better now. More good things coming 🙌🏽🎥

[@nestorg.7362]

@@CoastalGX I saw Sandy parked outside Thurmond eye associates about a month ago. She looks awesome. We just bought a new 2023 GX. We Love it

[@CoastalGX]

@@nestorg.7362 congratulations on your purchase!!! I bet you’re loving it 🙌🏽

[@nestorg.7362]

@@CoastalGX it’s a pretty sweet ride to say the least. I haven’t taken out yet to SPI to try it out but I’m planning on doing so soon. What PSI do you air down to on the sand? I would be on factory tires so not trying to get too crazy.

[@CoastalGX]

@@nestorg.7362 I do about 15psi on mine, but probably wouldn’t go below 20 on OEM.

[@gustavomuniz5745]

Subscribed, in the RAV4 behind you

[@CoastalGX]

Thank you, Gustavo!! That wheel cover was a good move! 😂🎥

[@luen6630]

Glad to ear your tuck is fix ! Thank you for making the video about it , i totally agree whit your mechanic except for the gasket part, yes GM have crappie gaskets and Ford also have their fair share of gaskets and crappie plastics but Toyota have many other engines that not using this way of sealing and work fine whit out leaking or catastrophic failures, all i saying is they could went a different route , what it really piss me about this is the fact that no matter what it will leak again ! it boils down to time as the sealant gets old start to leak, i bet there is a lot of people whit this problem and dont even know it , but even whit all the corks this truck have i still believe they are a really good truck i am on my 3 gx and most likely i will get another after i finish setting up this one🤣

[@CoastalGX]

Those are good points. They simply need to improve and accept there is an issue.

[@Rzagski]

Hi buddy. I just found out about this the hard way. I’ve got 160k miles on my 2011 and will be $2200 job. Parts are not much it’s the labor. Considering the last major service was 5 years ago ( water pump and 90k service/ belts). I feel like this extremely reasonable. Best vehicle ever.

[@CoastalGX]

Really do love my GX. Thanks for watching 🙌🏽

[@Carrillophotography]

Evetremely helpful thank you

[@CoastalGX]

Glad it helped. Thanks for watching.

[@1k1ngst0n]

excellent explanation! i was quoted $4000 to fix this

[@CoastalGX]

🫣that’s outrageous 😞

[@tdiddy3307]

4k was from the dealer right? and $1,600 from a local shop i'm guessing.

[@Mabeylater293]

@@tdiddy3307that dealer is taking you. $1500 tops at a dealer.

[@weloveups831]

Great information. Curious, how many miles? I caught the 10 years part. What in your experience is the best sealer to use? I know Toyota has its own FIPG. Thanks for the this video.

[@CoastalGX]

My truck had about 82k miles on the odometer when this happened. It’s not a mileage thing, but rather a “time” issue. My vehicle is a 2012 model, but my buddy has a 2014 and it happened to his also.

[@richardpetker4337]

Does the valley heat exchnager need replacing or just a new sealant after cleaning the old one? Thanks Got an 2011 LS460.

[@CoastalGX]

My buddy just did his LC200 and we both agree you don’t need to replace it. Just the seal.

[@Alex-xi2nz]

I had this done to my 2012 Sequoia (5.7) at the dealership. Amazingly it was $1350, which still hurt but not as bad as I’ve heard.

[@CoastalGX]

Yes, that’s actually a good price. Funny it’s a 2012, like my GX. It’s like an age thing with this issue:

[@Mabeylater293]

It shouldn’t have happened PERIOD!!! Toyota dropped the ball on this one. So here’s the bottom line: did toyota FIX this design flaw or is it destined to fail again? Thanks for the excellent video by the way.

[@CoastalGX]

They haven’t taken accountability for it. I think we all feel this way.

[@XBrandonLeeX765]

Common issue in the Toyota 2UR & 3UR V8s. I’m anticipating this happening to my IS F. I’m going to tackle it myself. I’m educating myself as much as I can. A common issue I keep reading about, is folks rolling the o ring in the coolant pipe. Also breaking the connectors. I just wish one can find a better sealant solution. To avoid re doing this task.

[@CoastalGX]

Congratulations on your IS F!! Love that car. Thanks for sharing and good luck with your project.

[@XBrandonLeeX765]

@@CoastalGX Thank you! It’s truly a pleasant ride!

[@errldabbins]

I had this service done on my 2012 GX at ~110k miles. I read up on it quite a bit and had a independent shop do it. I made sure they ordered the correct sealant from Toyota so it would be oem and wouldn't potentially be a generic sealant. That also ensured that what they used was 'fresh' and not expired from sitting on a shelf and separating which happens to a lot of sealants and greases etc when they've been sitting. The shop originally misdiagnosed the valley plate leak which I distinctly remember telling them that I thought it was, but they honored my original $600 estimate, and its been fine since at 2 years later

[@CoastalGX]

@@errldabbins that's great. Mine only had 88k miles when I noticed it. It's also a 2012 so I think this is an age thing and not necessarily caused by mileage.

[@dawkrb]

Plan on replacing all the fuel injection connections. The plastic gets brittle and they will break on you.

[@user-qx4yl5nd6u]

My isF has bubbles in the coolant tank but there’s no overheat u think it’s the valley plate?

[@CoastalGX]

The biggest tell is the coolant leak in the back of the transmission area.

[@dawkrb]

Had this done on my 2011 IS-F. Time consuming job-Cost me ~a grand a few years ago when parts were readily available at a small garage with a knowledgeable owner/Tech. he used a sealant that they use on UPS trucks and is guaranteed for life. Toyota hopefully has switched to an improved sealant.

[@CoastalGX]

Thank you for sharing. Yes, Toyota should acknowledge this issue and take responsibility for it.

[@colby3333]

P# for ups sealant?

[@dawkrb]

@@colby3333 I have to get a hold of my mechanic that did the work… stay tuned

[@colby3333]

@@dawkrb ty bro. My buddy is gathering parts for his repair

[@nrguitar11]

@@dawkrb any luck on the P#? Thanks

[@duridersa]

Just had this issue with 2014 tundra

[@CoastalGX]

Hope you can share your fix with us. 🤞 good luck

[@duridersa]

@@CoastalGX kzbin.info/www/bejne/emTSnJR5ndJ6rM0

[@bosshawg7427]

There skilled DIYers that can tackle it, but I think you missed a very important question that would help many. What is the exact recommended sealant for engines using long life and super long life coolants? Thats the most perplexing topic on these valley leaks

[@CoastalGX]

Sorry, brother.

[@bosshawg7427]

@@CoastalGXit's cool. Just find it ironic that most techs don't bring that up while it tends to be a big topic on forums. I wonder why

[@andybub45]

Toyota FIPG. Technically you’re supposed to use the grey type but that’s very expensive and hard to find, the standard black type will work perfectly.

[@t415x]

BulletsGarage has sort of the opposite take on this and I think it's because his GSF wasn't leaking, so instead of focusing on what type of sealant, he replaced the type of coolant in his GSF and theorized that it's the coolant that's eating into the valley seal. I asked him about the information he gathered to develop this theory and he said it was mostly from facebook group discussions. Not saying that his theory is bunk because he got it off of Facebook, but rather that I truly want to get to the bottom of this and want to do my part in sharing what I know. I believe you already mentioned that this is a big topic in the Lexus forums, but Facebook groups are just as important to pay attention to as there are some folks there that are very skilled and some even work at Toyota/Lexus. I'm also glad this is being discussed on KZbin, but the comments section is hard to navigate between different videos.

[@bosshawg7427]

@t415x I wound up buying a tube of the recommended sealant for the Valley leak on a 3MZFE. Surprisingly, the Toyota dealership here had it. It's expensive, but it's kind of convincing that it's usually only used by the techs for warranty work. So far, no leaks, and if paying extra gives a piece of mind of not having to go in the valley again for a good while or ever again for that issue, I'll take it.

[@brandonjohnson4793]

Great video! I have a p2714 fault- have replaced correlating solenoid, transmission wiring harness, filter, fluid…..won’t shift out of third….unless I let it warm up and it runs like new! Been driving it for 2 years like this…totally lost, any advice? Considering changing thermostat but honestly don’t know where that’s located just yet

[@CoastalGX]

Man, that would drive me nuts 🤨 This sounds like a something a pro needs to handle. Good luck on the repair. 🙌🏽

[@errldabbins]

I have something similar to you going on. I changed the trans fluid and the solenoid for the corresponding code with no luck. I didn't look at the filter but I am going to check that next when I go to install a valve body rebuild or 'zip kit' from Sonnex. Read up on worn bores in the valve body which cause pressure loss, and can throw codes related to different solenoids. The kit fixes the leaky bores with modified bore plugs and boost valve. From what I've gathered these parts can be replaced pretty easily, if you've gotten to the valve body (not hard) then you should be able to tackle replacing the valve body rebuild parts to shore up potential causes of pressure loss which lead to a lot of the transmission performance codes. Your solenoids can easily be function checked with a digital multimeter to rule out costly replacement of parts that are otherwise fine

[@maggiecatbagan5952]

What if you just keep filling up the coolant and not actually fixing it? Trying to decide if worth the fix? ($2500 quote) for 2011 Landcruiser

[@CoastalGX]

I did that for a few weeks so I guess you can do that until you decide how to proceed. Nice ride and good luck!

[@maggiecatbagan5952]

@@CoastalGX If I have to get done is there any reason to wait or is it better for the car to do right away vs. waiting? I assume I can't wait for another 5-6 years?

[@CoastalGX]

@@maggiecatbagan5952 it's really your choice. Depends on your needs and financial situation. Perhaps you should shop around for a better price. Most people pay between $1500 to $2000.

[@silver2756]

What did you notice before you took it to the shop?

[@CoastalGX]

One day I noticed abnormal engine temps so I pulled over to check the reservoir. I noticed it was below the line. So I filled it up and got it up on ramps. I saw some dried pink residue around the tranny bell. The temp was back to normal and I monitored the coolant level for a couple of weeks and noticed the coolant was low again. I just kept filling it until I found a reputable shop. Now it runs great.

[@Killian665]

Sounds like a standard valley plate job on anything

[@kenw5913]

Just had mine done on mu '09 LX570 at ToyoTec in Rancho Cucamonga. 1700 cash vs 2300 at the dealer, used genuine Toyota FIPG / 10 year gasket silicone. Money well spent.

[@CoastalGX]

Sounds about right 👍🏽

[@markcorpuz6408]

How long does cure time for liquid seal

[@CoastalGX]

A buddy just did his. It was supposed to be at least 2 hrs, but he waited overnight instead just to be sure.

[@gusdabus101]

Mind if I ask how much this repair cost you? Might have to do the same thing on my LX570 depending on my diagnosis on Wednesday.

[@maratines]

I paid $1600 including parts. Glad you’re taking care of it. Mine is still going strong.

[@CoastalGX]

That’s my other account replying lol.

[@tdiddy3307]

Local shop and not a dealership right? @@maratines

[@maratines]

@@tdiddy3307 correct 👍🏽

[@ravin747]

Had mine done this week. 2012 gx460 150.000 miles ,heat exchanger was leaking dealer did the work ,$ 1,900 all new gaskets o rings and such, It should be good for the next 150,000 miles. common problem on lexus land cruiser toyota.

[@CoastalGX]

Glad you took care of it and thank you for sharing. I paid $1600 for mine so it’s on par.

[@huntingtonbeachanthony4957]

​@@CoastalGXJust paid $3100 2013 LS 460!

[@CoastalGX]

@@huntingtonbeachanthony4957 stolen!!!! LOL. Sir, you are a lucky guy and I'm jelly lol. Wait, for the car or the service???

[@huntingtonbeachanthony4957]

@@CoastalGX The service! Shops in my area charge a "location" premium! He quoted $ 3600! But gave me a "discount. " 🙄

[@CoastalGX]

@@huntingtonbeachanthony4957 that’s crazy expensive 🫣

[@sunilshrestha657]

how much cost to fix valley plate leak?

[@CoastalGX]

About $1600 to me with parts and labor.

[@Tiffhurley]

What model years is this a common thing?

[@CoastalGX]

Mine’s a 2012, but it’s been common on all years and even many different Lexus/Toyota engines. They should just accept this is a big issue.

[@valleygoat8378]

Your intake was leaking?

[@CoastalGX]

The gasket seal in the back had a small but concerning leak. Yes sir.

[@abz520]

Anyone fix this with radiator stop leak?

[@CoastalGX]

I haven’t heard or read on anyone successfully doing it that way.

[@smashwindow01]

Is there a way to prevent this?

[@CoastalGX]

This is just a weathering issue as I understand. It just deteriorates. 😟

[@smashwindow01]

@@CoastalGX I’ve heard that switching to red coolant from pink will prevent it, but the red coolant needs to be flushed every 30k.

[@CoastalGX]

@@smashwindow01 interesting.

[@usp45shooter]

What are the symptoms of the leak?

[@CoastalGX]

Three big warnings: 1. Pink residue around the transmission housing. 2. Low coolant levels. 3. Runs hot.

[@usp45shooter]

@@CoastalGX ok thank you

[@fixingproblems3183]

Where are you located?

[@CoastalGX]

Mcallen, TX

[@WhatD4FCK]

So how much it end up being?

[@CoastalGX]

Around $1600 all in

[@WhatD4FCK]

@@CoastalGX thank you! Also is that price with your mechanic Or at Lexus?

[@CoastalGX]

@@WhatD4FCK It was at a locally reputable NAPA affiliated shop so the parts and labor have a warranty. I've had bad experiences at the dealership and their prices were inflated. Saved over $600 at the shop and I still have warranty. So I think it's important to find a trusted mechanic that has previous experience. Good luck with your truck.

[@CoastalGX]

@@WhatD4FCK sorry for the late reply. It was with the private mechanic.

[@Mabeylater293]

Will it leak again?

[@CoastalGX]

If it does, it should be much longer than 11 years since we used some upgraded sealant.

[@nrguitar11]

@@CoastalGXYou mind sharing what upgraded sealant you used?

[@CapsuleMachina]

My GX is literally in the shop getting the valley plate and water pump done. And only has 91k on her.

[@CoastalGX]

Mine had 87k and is a 2012. What model year is yours?

[@CapsuleMachina]

2014, I was changing the oil and notice coolant residue on the block and figured it was a water pump. Took it to the dealership ( I have extended warranty) and the diagnosed the valley plate was leaking too.

[@CoastalGX]

@@CapsuleMachina my warranty ended in December 2022! Classic. 😂

[@Mabeylater293]

That’s a shame. Toyota needs to cover this. We expect far more than GM/Ford reliability when buying a toyota/ Lexus

[@Ill06Taco]

Cylinder block heat exchanger*

[@CoastalGX]

Very interesting. Going to do some research on that later 👍🏽

[@Ill06Taco]

@@CoastalGX that's what Toyota calls it. Valley plate is more of a literal term that most people understand.

[@CoastalGX]

@@Ill06Taco thank you!

[@Ill06Taco]

@@CoastalGX very common with the UR series in all applications LS, IS, GS, GX, Tundra. Oddly I haven't seen one leak on a LX or Land Cruiser. I also haven't seen them leak on any of the vehicles that are around 5 years old yet but time will tell.

[@flight2k5]

This happened to mine as well. But at 14000 miles I’m ok with it

[@CoastalGX]

I think it’s an age issue since mine is a 2012 with 87k miles. My buddy Gabriel has a 2014 and he just did his VP seal today also.

[@flight2k5]

@@CoastalGX mines a 2010

[@flight2k5]

@@CoastalGX I wouldn’t trade any Toyota/lexus vehicle I own or owned for anything domestic.

[@CoastalGX]

@@flight2k5 amen!!!

[@Iraqveteran-ke6qu]

On a BMW this would be $6600 job and more frequently.

[@jaycarl1562]

This is not a hard fix for a patient DIYer with the proper tools

[@lpz6564]

All I heard was blah blah blah $$$$ blah $$ blah $$$ blah!💰💰💰💰

[@CoastalGX]

😂😂😂 welcome to the real world. Bring money.

[@jaypikachu6660]

Totally this not a diy job, even some Mechanic may scroll up when remove intake manifold, something fall inside the piston and destroy the engine, GX470 has a better engine can last up to million miles if maintained, GX460 engine has more problems!

[@CoastalGX]

It’s not exclusive to the GX460. I read up on Tundras and other Lexus models. Very annoying issue. My truck only has 87k miles so this is more of an age issue.

[@Moondoggy1941]

I have a GX 470 with 200K on the clock it is a 2007 model, full dealer service up to 195K miles, what should I look out for and what service should I do. I am the second owner.

[@MaximumDIYGarage]

@@Moondoggy1941 I have a 2009 GX470. I recommend you consider getting g the timing belt done around every 100,000 miles or every 7-8 years. Now, There are guys out there that drove over 150k miles and over 10 years on the original belt and when it was removed it looked pristine. So it’s up to you how long you want to push your luck. Get the fluids baselined. Lubricate the drive shafts. Check the brake pads. There trucks tend to wear out their rear pads first. Also check the SAIS (secondary air injection system). You can do your own spark plugs too! kzbin.info/www/bejne/fH3TdmuCar6ra6M Do you still have the original rear suspension/air bags?

[@Moondoggy1941]

@@MaximumDIYGarage Thanks, lucky for me the timing belt and water pump have been replaced twice by the dealer. I will check into the fluids and drive shaft, I do not think it has ever been in 4 wd, it is a mall princess still. I have owned it for 3 years, , I did drive it for a year about 25 miles a day, then gas went to almost 6 dollars a gallon I did not drive it as much. I do have the original rear suspension, I would like to an upgrade for more off-road but nothing serious. Do you have the dealer do the secondary air injection? I can usually do spark plugs as long as it is not crazy difficult. Thanks for the help.