ninabauer1
Lexus ES Hybrid Overheating Error
Summary of the thread
A 2018 Lexus ES hybrid is experiencing an overheating issue, potentially linked to a bypass valve malfunction, possibly due to a vacuum system problem. A similar case suggested checking vacuum lines for damage or disconnection. It was advised to have a qualified technician diagnose the issue due to the complexity of the bypass valve and vacuum system. The problem was resolved without replacing the bypass valve, and the repair was completed at no cost.
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4 comment(s)
ninabauer1 (community.author)
When you say 'vacuum lines,' which specific lines should I be looking at? I'm not familiar with the engine layout and want to check the right components. Where are they located?
aaronphoenix6
Given the complexity, a qualified technician should diagnose it. The bypass valve and vacuum system can be intricate, and misdiagnosis leads to unnecessary repairs. Consult a trusted workshop.
ninabauer1 (community.author)
I scheduled an appointment, and the error was a consequential one. It was fixed without replacing the bypass valve. The repair cost 0€.
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LEXUS
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ES
aaronphoenix6
I had similar symptoms on my ES – engine overheating and a bypass valve error. It was a minor vacuum leak affecting the valve. Check the vacuum lines connected to the bypass valve for damage or disconnection.