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Discussion Starter · #1 ·
2012 ct200h with about 132xxx miles on it. Recently the engine started studdering on start up and when accelerating from stop. Took it to south bay Lexus and was quoted at $4500 to fix. Didn't go through with repairs and decided to take my vehicle to car care automotive. Car care informed me that the head gasket is blown. Still waiting for repair estimate. Has anyone had this issue with their ct200h?

P.s. coolant leaked into cylinder 1. Codes P0300 0301 & 0302.
I also found a used engine for $1980 with no issues and have someone who can install it for $900. Thinking that will be my best option, any opinions/advice would be great.
 

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yep, the early CT200s had head gasket problems exactly as you're describing. Coolant leaks in and fouls up the plugs and throws codes and causes shuddering.
 

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Discussion Starter · #4 ·
yep, the early CT200s had head gasket problems exactly as you're describing. Coolant leaks in and fouls up the plugs and throws codes and causes shuddering.
I wish I had known this before I bought it. Not exactly too sure what I should do about it now.
 

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I wish I had known this before I bought it. Not exactly too sure what I should do about it now.
yeah I did my good research before buying mine, that's why I went with the 2016. Best bet is to replace the engine and hope it doesn't happen again
 

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2012 ct200h with about 132xxx miles on it. Recently the engine started studdering on start up and when accelerating from stop. Took it to south bay Lexus and was quoted at $4500 to fix. Didn't go through with repairs and decided to take my vehicle to car care automotive. Car care informed me that the head gasket is blown. Still waiting for repair estimate. Has anyone had this issue with their ct200h?

Were there any tell-tell signs days or weeks prior this happening? Outside of the known knocking sound on a cold day, my ‘12 has been running well but now I’m wondering myself.

Did they tell you what caused it? Was it the coolant leak like the other person commented?
 

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Discussion Starter · #7 ·
Were there any tell-tell signs days or weeks prior this happening? Outside of the known knocking sound on a cold day, my ‘12 has been running well but now I’m wondering myself.

Did they tell you what caused it? Was it the coolant leak like the other person commented?
Nope , had no issues before this. I'm always on time with maintenance for my vehicle. The only thing I could possibly think of was I had my engine bay cleaned one day and the person who cleaned it used a pressure washer. I'm thinking maybe that caused an issue? I'm not exactly sure how but I don't see another way of it messing up on its own.

There is coolant in the cylinders which is causing the studder.
 

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It's just a product of age and use. It's an unfortunately common issue on these engines for Lexus and Toyota. I'd almost say it's an inevitable matter of time before the issues happen. Just like the hybrid battery eventually goes bad.
 

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yep, the early CT200s had head gasket problems exactly as you're describing. Coolant leaks in and fouls up the plugs and throws codes and causes shuddering.
They actually don’t have any engine problems. There were no specific changes through the engine series.
I’ve been working at Lexus for 15+ years in the workshop.


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They actually don’t have any engine problems. There were no specific changes through the engine series.
I’ve been working at Lexus for 15+ years in the workshop.
Well, maybe not with the engine itself, but maybe one of the systems with the engine? Do you know what was changed?
 

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There is considerable history of this issue on priuschat 3rd generation. Issues driven by Atkinson cycle and the need for immediate attention if any rough idle at start up takes place. Long and short is any miss fire, spark failure, blockage of the EGR cooler cause head gasket failure, water in cylinders and soon after piston expulsion. Problem arises with kms over 100. Nutzandbolts has a series of videos showing diy.
 

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yep, the early CT200s had head gasket problems exactly as you're describing. Coolant leaks in and fouls up the plugs and throws codes and causes shuddering.
Going through that issue right now. Two oil changes, and the filter was not changed. Replaced EGR myself when shuddering started periodically; cleaned EGR cooler meticulously; oil issue killed engine, I suppose. Ran beautifully for about 30 miles, and then apparently head gasket blew. Should I worry about a new head, or just replace the gasket? suppose a machine shop should check he head for warping? Thanks.
 

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Going through that issue right now. Two oil changes, and the filter was not changed. Replaced EGR myself when shuddering started periodically; cleaned EGR cooler meticulously; oil issue killed engine, I suppose. Ran beautifully for about 30 miles, and then apparently head gasket blew. Should I worry about a new head, or just replace the gasket? suppose a machine shop should check he head for warping? Thanks.
My condolences. Best to have it checked by a shop and hope for the best.
 

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2012 ct200h with about 132xxx miles on it. Recently the engine started studdering on start up and when accelerating from stop. Took it to south bay Lexus and was quoted at $4500 to fix. Didn't go through with repairs and decided to take my vehicle to car care automotive. Car care informed me that the head gasket is blown. Still waiting for repair estimate. Has anyone had this issue with their ct200h?

P.s. coolant leaked into cylinder 1. Codes P0300 0301 & 0302.
I also found a used engine for $1980 with no issues and have someone who can install it for $900. Thinking that will be my best option, any opinions/advice would be great.
YES! I have this same issue currently - Lexus Concord is stating it is a $4600 repair job, and Lexus corporate has stated they will only kick in $1300 toward the repair, which is so lame, as I have been told that only 3rd generation Prius hybrid engines have this issue (of which our car has the same). So Prius and Lexus model years 2011-2016 are affected. Did you go forward with repairs? I am pushing Lexus corporate to pay for more, but it is going nowhere.
 

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I wish I had known this before I bought it. Not exactly too sure what I should do about it now.
What did you end up doing with your car? I have the same issue, at 92K miles on a 2104 ct200. It's a $4600 fix, or more - if the shuddering continues which I am being told it often does.
 

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Going through that issue right now. Two oil changes, and the filter was not changed. Replaced EGR myself when shuddering started periodically; cleaned EGR cooler meticulously; oil issue killed engine, I suppose. Ran beautifully for about 30 miles, and then apparently head gasket blew. Should I worry about a new head, or just replace the gasket? suppose a machine shop should check the head for warping? Thanks.
oh, damn, I was responding to myself...
 
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