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Old 01-20-2011, 06:40 PM   #5
Bluefoton
Scooby Guru
 
Member#: 141373
Join Date: Feb 2007
Chapter/Region: E. Canada
Location: Quebec, QC
Vehicle:
2022 Crosstrek Sport
6MT

Default

I vote for HG as well. It creates bubbes in your coolant. At idle when heated after a drive, it impedes coolant circulation, so it heats more. Reving it a bit turns the water pump, which stirrs the bubble and helps cooling it as well. Sorry, had the very same symptoms just recently.

By the way - if you're on your stock clutch, might be worth replacing it when the HGs are done. The engine is out, the clutch is in the open, so it takes literally zero additional work to replace it - you are saving a few hundreds $ in labour (assuming you want to keep the car for a while).
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