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Old 07-15-2016, 05:57 PM   #16
Scrub
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Join Date: Jul 2016
Drives: 2015 White BRZ MT
Location: USA MA
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Quote:
Originally Posted by extrashaky View Post
This is a good point. That dead spot is at least 40° F wide. If it's moving above the middle detent position, the coolant temp has to be getting well above 220° F.

OP, if the aux fan is coming on, you should hear it. It sounds like a train in the distance.

Heat soak when coming to a stop after a highway run... I'm not that familiar with how boxer engines manifest symptoms, but in other vehicles I've had, that sounds an awful lot like early signs of a head gasket problem.

Stupid question: Have you checked your coolant level?
Oops didn't see this until after my last comment. Coolant was fine, but you were right about the head gasket. Thanks!

Any ideas on how to prevent this kind of thing from happening again?
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