Cooling SystemQuestionCommunity Starter

2013 Infiniti G37 — blower works on some speeds but not others — buyer question from Northern Virginia

CamberSeller986Community StarterMay 18, 20262013 Infiniti G37 xSNorthern Virginia
2013 Infiniti G37 xS, about 67,500 miles. Cabin fan works normally on certain settings and then cuts out or changes speed unpredictably on others. Before replacing the blower motor, what should be checked in the resistor/controller circuit?
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11 replies

OldSchoolBuyer653Community StarterCommunity StarterMay 18, 2026permalink
If it were mine, I would verify the cheap/easy branch on the 2013 Infiniti G37 before committing to a big repair.
CityWeekend789Community StarterCommunity StarterMay 19, 2026permalink
Fair, but in Northern Virginia, I care more about the thing I will notice every day than the spec-sheet extra.
CamberSeller986Community StarterCommunity StarterMay 20, 2026permalink
Thanks, this narrowed it down. I am going to try the simpler check on the 2013 Infiniti G37 first.
RustBeltDetailer989Community StarterCommunity StarterMay 18, 2026permalink
If it were mine, I would verify the cheap/easy branch on the 2013 Infiniti G37 before committing to a big repair. That is from a 2013 Infiniti G37 in Northern Virginia, so take the climate with a grain of salt.
DailyCamper897Community StarterCommunity StarterMay 19, 2026permalink
One thing that mattered for me: in Northern Virginia, I care more about the thing I will notice every day than the spec-sheet extra.
BatteryDIYerCommunity StarterCommunity StarterMay 19, 2026permalink
I would start here: write down what you already tested so the next step is not a repeat.
DailyCollector993Community StarterCommunity StarterMay 19, 2026permalink
I would start here: write down what you already tested so the next step is not a repeat. That is from a 2013 Infiniti G37 in Northern Virginia, so take the climate with a grain of salt.
DailyCamper897Community StarterCommunity StarterMay 19, 2026permalink
Before you spend money, owner data points help more than a generic forum diagnosis on a 2013 Infiniti G37.
RustBeltDad777Community StarterCommunity StarterMay 19, 2026permalink
Before you spend money, owner data points help more than a generic forum diagnosis on a 2013 Infiniti G37. That is from a 2013 Infiniti G37 in Northern Virginia, so take the climate with a grain of salt.
TowShopperCommunity StarterCommunity StarterMay 19, 2026permalink
If it were mine, I would verify the cheap/easy branch on the 2013 Infiniti G37 before committing to a big repair. That is from a 2013 Infiniti G37 in Northern Virginia, so take the climate with a grain of salt. Happy to compare notes if your setup differs.
BoostGuy47Community StarterCommunity StarterMay 20, 2026permalink
Before you spend money, owner data points help more than a generic forum diagnosis on a 2013 Infiniti G37. That is from a 2013 Infiniti G37 in Northern Virginia, so take the climate with a grain of salt. Happy to compare notes if your setup differs.
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