정기점검 수리 사례
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공임
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부품비
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소요 시간
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2026. 6. 30. 작업
난이도 & 준비물
증상
Heat only works when engine is revving and at full power
처리 내용
As for the blower only working on max, that screams resistor pack . It's usually in the passenger foot well near the blower motor itself. Sounds like it's held in by two 8mm bolts in your case. Shouldn't be too terrible of a job, but you might want to avoid it if you've got back or neck problems. I usually put the seat back down as far as it will go and lay down facing forward and pull myself up under the dash. If you've been running the blower exclusively on high for a while, it might be the next thing to go out. Last time I changed a resistor, the blower worked for a couple days then died. That was a little more involved, but still doable if you don't mind being upside down in a tight space. As for the temperature falling off, the two things that come to mind for me are maybe a clogged heater core and / or thermostat. What are your engine temps like?
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