Vauxhall Signum Intercooler Problems
Problems mentioning the Intercooler on the Vauxhall Signum
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What problems can be caused by a faulty Intercooler?
Check Engine warning light showing on dashboard
The dashboard warning light showing on this page (or one very similar, sometimes a slightly different shape or colour) has appeared on the dashboard and doesn't go off when the car is running.
Engine temperature is higher than normal
The engine temperature reading on the dashboard gauge is noticeably higher than usual. It doesn't seem to be caused by sitting in traffic on a hot day, it is generally just higher all the time.