jannikheld6
Insignia Overheating Bypass Valve Error
Summary of the thread
A 2017 Vauxhall Insignia is experiencing a bypass valve error and overheating, despite normal coolant levels and no leaks. The issue might be related to the vacuum or exhaust system. A similar case involved a faulty sensor causing the bypass valve to malfunction, suggesting a diagnostic check at a workshop could identify the problem. The error was a stored one, not cleared after a previous repair, which resulted in no additional repair costs.
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4 comment(s)
jannikheld6 (community.author)
No stalling or rough idling, but the engine lacks pep. I haven't inspected all vacuum lines. Did your error specifically point to the bypass valve?
antondrache13
The error pointed to the bypass valve, but it was a faulty sensor causing the bypass valve to malfunction and overheat. I'd recommend a diagnostic check at a trusted workshop.
jannikheld6 (community.author)
I'll schedule a diagnostic check. The error was a stored error that wasn't cleared after the original repair. The repair cost came to 0€ since it was not a new error. Thanks!
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VAUXHALL
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INSIGNIA
antondrache13
Error codes and overheating are never good. Any engine stalling or rough idling? Have you checked the vacuum lines for cracks or leaks? Even a small leak can cause issues.