Coolant leak

I have a 2022 tundra hybrid 1794 4x4 leaking coolant from in between the transmission and the electric motor didn’t know if anyone else had seen this problem

 

There is another post with photos of similar complaint on the Hybrid. If I can find it Ill post link to it.

https://www.tundras.com/threads/oil-leak-on-new-2022-tundra.113478/

 

I have a 2022 Tundra 1794 TRD Off road Hybrid as well. Noticed the coolant leak this AM, pink fluid on garage floor. Running down the hose and coolant level was at low level. Dropped it off at the dealership today and will find out Monday. Absolutely unacceptable in a $70K truck with <10K miles.

 

I had one in my 1 month old 2022 in November at 1300 miles.The service manager said a connecting rod associated with the expansion tank was the culprit. Said it looked like a home made part. Replaced the tank, rod and a hose. Parts took several days so it was out of commission 8 days. 2 months later and issue has not returned. The earliest by far I have ever had an issue with new vehicle. Fingers crossed a one off. Reported to 1-800 Toyo. The guy from Nigera on the other end did not give a damn

 

Thanks for the input! I was not happy! I’ll share with my service advisor.

 

My 2022 failed me at 4400 miles. Coolant had been leaking since I drove it off the lot and no indicator warned me on the dash. Took it to dealer, they told me I had a blown head gasket. Here I am 6 months later in a lemon suit against ol'reliable toyota corp. Good luck to you guys, I really loved the truck.

 

That sucks. Sorry your new truck had problems. Welcome to the forum anyway.

 

Curious to hear where it's leaking from. It looks like it's leaking higher up in the system since it's running down the hose. However, it also looks like it's weeping from the top of the hose connection. I wonder if the clamps are just not seated properly at both ends? That's what it looks on my XJ when my clamps came unseated (I hate those cheap pinch-style clamps BTW).

Could be similar to the recent issues with Tesla's and Hyundai's where they had repairs completed prior to delivery and they were missing bolts during the reassembly process after the repair. Maybe they had to unseat the hose for something and it was reseated correctly.

On a side note: External coolant leaks are much better than loosing coolant without an external leak.

 

There have been a lot of QC holds for all manufacturers during the supply chain period. Makes you wonder if there is some "Chuck Newguy here is a bag of parts go fix that try row of vehicles on hold in the back lot" causing quality issues

 

I have a 2022, 1794 4 x 4 Trd the dealer mentioned to me when they did the last oil change they had out cooling leak. They order the part I took it in today and they told me the notice there was another leak coming from the engine base so they’re waiting for manager for Toyota headquarters to take a look at it Hopefully does not turn into a lemon lawsuit

 

Any updates on these leaks I have a 2023 and I'm going to lay under there and check for leaks now crazy to think 4500 I could have any leaks! But like to know the issues these trucks are getting.

 

2024 TRD Pro, just did the break-in oil change at 988 miles, and noticed some coolant, coming from somewhere above. @Fatone do you have the receipt of what was done to repair yours that you would be willing to share?

 

Mine wasn’t new but I found coolant splashed up in the front of the motor because the coolant reservoirs were way overfilled. This obviously doesn’t sound like it applies to the OPs problem but I felt like it was worth mentioning

 

You have me thinking now. I do have a few platters on the fan shroud which is pretty high up near the coolant reservoir. Do you know were the reservoir overflow is or how it overflows if it were overfilled from the factory/dealer during PDI? I'm used to a short hose near the coolant reservoir that vents/overflows, but the Tundra has what looks like a plug on what could be an overflow right below the cap. If that cap does allow coolant out, it does align with the areas below it with pink crusty residue.

The engine coolant cap/plug (the left one, not the one circled) is almost directly above where the coolant residue is. Also right under there is the plastic water inlet (16322-F4012) with 3 hoses meeting which is where I first thought it was coming from.

 

Your coolant looks fine. Looks like it’s right at the low level which if it was hot when you took that picture you would be fine. Much lower than mine was.

 

That's not a picture from mine, just one I found on the Internet showing the plug I was describing. Mine's higher than that, at the full line for sure. I'll have to check where it is after it fully warms up.

 

Maybe this will help someone else, or maybe someone can explain how this makes sense.

Tracking the coolant path upwards I found the highest point I see coolant traces is the engine coolant overflow plug next to the cap that has pink/white residue (shown below). Maybe someone spilled coolant while topping it off during the pre-delivery inspection (hopefully) vs. the overflow needed to be used (air pocket or over pressure). The coolant level is set properly in the reservoir and when at operating temperature, I haven't noticed the level being too high that it would come out the overflow.

 

While at the dealership for a rear main seal leak warranty repair https://www.tundras.com/threads/update-leaking-main-seal-2200-miles.126755/page-4#post-3791791 I showed the coolant residue pictures and asked for it to be checked since I was there anyway. The coolant system was pressure tested and it held pressure, no leaks. The best guess is that coolant was spilled during assembly or PDI in my case.

 

23 Sequoia Hybrid. Coolant everywhere. Definitely a high leak point. Reached out to my dealer and waiting to hear back.

 

What was the outcome ?