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Discussion Starter · #1 ·
I have a ct200h with rattling engine! We have changed coils, plugs, cleaned egr system( valve and cooler has been changed for brand new) and intake manifold. Water and oil not mixed.
Still rattling, check engine light still on.
Dealership told me that misfire is at 1st cylinder.
system also says replace backup battery ( which I dont see playing a role in the noise)
The dealership just try to encourage me to trade it in.

i just don’t believe that a lexus should be a junk at 185000 miles and no fix for this rattling noise!!!!!
I urgently need help with this issue!!
It’s been going on for 3 weeks now and I also spent over 2000$

( boyfriend also had been a lexus technician for 10 years but he left dealership in 2015 so he also has no clue at this point what’s wrong or what is next with this ct200h)
 

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Are you losing any coolant by any chance? I remembered mines rattling like hell too when I first got it. I took it back to my small dealership since it had a warranty and it ended up having some head gasket issues.
 

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Discussion Starter · #3 ·
Not loosing any coolant! I asked many times about head gasket replacement but they say it is ok! I’m afraid by the time we find the issue the head gasket will be a problem too🥴
I’m out of warranty that is for sure!
 
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