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I also have a 2013 CT200h, and like another poster on this site, it had about 130,000 when the engine light went on and it started violently shuttering on start in the morning. I had it evaluated at an independent shop and they found the code to be a misfire in cylinder 1. When they pressurized that cylinder, the coolant bubbled up, indicating a head gasket leak (the air escaped through the head gasket into the coolant system.) The shuttering in the morning was because the coolant leaked into the cylinder and the first few ignitions failed because of that.

I got quotes from that shop ($4100) and from the Lexus dealership ($7000) for replacing the head gasket. Then I found a regional shop (greater SF Bay Area) that specializes in Prius head gasket replacement (found them on Craigslist). They've done 1500 of them and have posted 30 or so videos on YouTube showing exactly how they do them. I called, they quoted me $1350, they came to my house 3 days later with their van stocked with replacement parts. It took two of them 3.5 hours to do it on the spot, and it's been running beautifully every since (a week now.) One of the costs (and delays) of the gasket replacement is machining of the head if it needs it. They keep a machined one in the van (along with other replacement parts like radiators) and just trade it out if needed (charging a relatively small fee for doing it - I think they said $175 or something, but mine didn't need it). They didn't try to upsell me at all. When a small issue occurred (some carbon blocked a pollution control sensor), they came by the next morning and fixed it without additional charge with no questions asked.

They told me these engines 2ZR FXE tend to need new head gaskets at about 130,000 miles. One of their videos explains why. Apparently, most of the stress on a head gasket comes when the engine heats up. The aluminum block and head expand, while the steel bolts that hold them together do not, so the head gasket is compressed. The more on/off cycles of the engine, the more stress this causes. Since hybrid engines are designed to turn off during drives and stops, they tend to fail more often than a conventional non-hybrid engine.

Could you share the information for the shop you used? Im in San Jose and had the exact same thing happen this weekend to my 2011 CT!

thank [email protected]
Liz
 

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Don't believe that at all.
Very common occurrence on CT,Prius and Auris (UK).
None have been due to head gasket failure. This engine doesn't suffer from head gasket problems and I've never read of any either.
Questions:
Does the engine suffer from coolant loss?
Are you having to keep topping it up?
Is there any oil in the water and water in the oil?
Which cylinders are misfiring ?
Mine had this problem last winter. I cleaned out the EGR valve and pipe and used a fuel injector cleaner. The car hasn't suffered with it since. It was also a really scary bad shuddering too.
Sorry for the questions but I would investigate it more as you don't want to be paying for things that aren't required.
Good luck.


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Did you do the work yourself, or have it done? I'm shitting myself right now with this loud shuttering. Two mechanics on the phone have told me it's the head gasket from what I describe. I'm not very mechanical, so would probably have it done, if in fact it's what you say. I haven't had the car looked at yet. Not sure how I would request this service. Just ask them to clean the EGR valve and pipe? Did you put fuel injector into your gas tank? Which brand? Thanks so much...
 

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A bad head gasket may or may not be the cause of the banging and clunking, but it will be the end result if you let it go on. This guy may have been at the very beginning of it and in his particular situation the gasket was not damaged YET. I am curious though how a exhaust cooling system would cause the car to misfire. If the pipes are clogged, it would just let all the exhaust exit without cooling. Also, such a clogged system would throw a code due to certain conditions being detected by the 02 sensors. Absent this code, I would not waste time cleaning the coolers and pipes.
 

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Hi all,

Add my name to the list here... violent shudder when accelerating, engine warning light, into the dealer to assess the light, code P0300, P0301, etc. which indicates cylinder misfire, diagnosis as issue with intake manifold and crack in head gasket, beaucoup bucks to repair, yadda, yadda...

How many people on this board reported the issue? At least 25+ by my count. That is just Lexus CT owners who found this board to see why and how this would happen to such a high-end brand car and maybe to complain, probably countless others who just paid for the repair and just moved on without digging into it. Then there are also probably a multitude of others who have an actual Prius with this same engine with the same issue, and I have good sources who have looked at Prius boards that confirm this.

I purchased a CT200 late last summer, and over the course of the last week found out that this problem was really a problem with how Toyota/Lexus is addressing the issue. They knew long before any one of you hit 100K miles that this failure was inevitable, yet they did nothing for the customer to avoid the major issues - a blown head gasket, or at worse: hydrolock, a bent cylinder or a cylinder through the block, complete engine destruction. Sure, they put out a TSB on the intake manifold, but never did anything proactive to help the customer avoid the major issue down the road. Look at the TSB --> L-SB-0019-16. They put this out in January of 2013. They knew that after a cold soak (apparently that is engineer-speak for turned off car and let sit idle for a time) that the engine might "run rough" at first, "rattle", maybe have a diagnostic code that indicated a cylinder misfire. Guess what - by that time it is too late! You already have coolant leaking into the cylinder at that point and you already have a cracked head gasket.

Maybe a seasoned mechanic can tell me I'm wrong here, but the way I see it, the intake manifold is the contributor to the head gasket failure. The EGR system in this engine sends exhaust to individual runners (or EGR port, whatever you want to call it) in the intake manifold, then onto each cylinder as part of the exhaust gas recirculation process. With the temperature control at the EGR valve and nothing to monitor the temperature at each individual runner, any carbon deposit build up that clogs an individual runner and increases the running temperature at that individual cylinder will cause that cylinder to run hotter than the other cylinders that have less clogging. This uneven temperature between the cylinders causes a differential expansion on the cylinder head and eventually causes the head gasket failure at that cylinder.

So, yes. The offer is out there to mechanics on this board. Tell me where I am wrong in this assessment of intake manifold - individual runners - carbon clogging EGR circuit - differential expansion on cylinder head - head gasket failure. I'll admit that I am no mechanic, so clarify any points I make that are wrong (as well as confirm any parts that are right).

Back to the real issue - what did Toyota/Lexus do about this, aside from putting out a few TSBs (also see L-SB-0019-16)? Nothing, that I can see. Lexus/Toyota has not been proactive with its customers to offer a solution to this problem that avoids major expense to the customer. There are a number of ways Toyota/Lexus could have saved it’s customers from undue expense. First, Lexus/Toyota should have made updates to the service schedule on this vehicle to inspect the car for clogging in the intake manifold. To my knowledge, they have never updated their service schedule to include this. Toyota/Lexus could have also offered a cleaning of the intake manifold at regular service intervals to avoid the clogging and cylinder failure that leads to the head gasket failure. Additionally, Toyota/Lexus could have required a complete replacement of the intake manifold by a certain mileage so the customer could avoid a head gasket failure. Any one of these proactive decisions could help your customers avoid the issues that lead to higher repair expenses on the car.

No, Toyota/Lexus knows. Toyota/Lexus knows there is a problem with clogging in the intake manifold and that this clogging problem contributed directly to the head gasket failure. But they chose to do the least they could do, and the owners of these cars are now getting stuck with the results of this negligence.

Question is, are we all just going to plunk down our hard earned money to fix a problem that could have been avoided if Toyota/Lexus did the right thing?
Same 💯 exactly 💯 issue. 2012 ct200h -just over 100k miles.
My car has Been at lexus for 3 days. Paying the $199 for diagnostic visit with every intention to take the info they give me and find a mechanic. I didn't know it's be this much! Any advice?
 

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2015 eminent white pearl
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Same 💯 exactly 💯 issue. 2012 ct200h -just over 100k miles.
My car has Been at lexus for 3 days. Paying the $199 for diagnostic visit with every intention to take the info they give me and find a mechanic. I didn't know it's be this much! Any advice?
Did you try gasket masters? They may have the service in your area. They charge like 1800
 
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