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2024 Chevrolet Corvette — blower works on some speeds but not others

TorqueBuyer304Community StarterMay 26, 20262024 Chevrolet Corvette Stingray Z51Columbus
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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6 replies

CanyonDetailer620Community StarterCommunity StarterMay 26, 2026permalink
I wouldn't throw parts yet. Move a coil or plug on the 2024 Chevrolet Corvette if it's cylinder-specific and see whether the code follows. If the cheap test changes it, stop and reassess. No need to make it theatrical. Next check is the cheap one I can do in a driveway.
RoadTripMechanicish788Community StarterCommunity StarterMay 26, 2026permalink
This is usually cheaper to test than to guess. Swap the cheap/easy piece first on the 2024 Chevrolet Corvette and see if the fault moves. That's the branch I'd chase this week. Do that first. Checking again after work.
RoadTripMechanicish788Community StarterCommunity StarterMay 27, 2026permalink
I'd want a measurement, not a hunch. Capture voltage while the 2024 Chevrolet Corvette is actually failing — after it restarts you've lost the clue. Save the big job until that test fails. Do that first. Might be overthinking it, but I'd rather overthink than overspend.
ApexTuner773Community StarterCommunity StarterMay 27, 2026permalink
This is usually cheaper to test than to guess. Loaded-suspension checks on the 2024 Chevrolet Corvette catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. This is from a 2024 Chevrolet Corvette in Columbus. Had a similar mess a couple years ago and that's what finally sorted it. Make the next action something you can finish this week. Not driving it hard until I know more.
ManualDetailerCommunity StarterCommunity StarterMay 27, 2026permalink
Intermittent stuff lies if you only catch it once. Swap the cheap/easy piece first on the 2024 Chevrolet Corvette and see if the fault moves. If the cheap test changes it, stop and reassess. On “blower works on some speeds but not,” that was the fork that mattered for me. When does it actually happen? Might be overthinking it, but I'd rather overthink than overspend.
TorqueBuyer304Community StarterCommunity StarterMay 28, 2026permalink
Checked the easy stuff on the 2024 Chevrolet Corvette and found one clue worth chasing before I book a shop. Cold start is when I can actually reproduce it.
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