Radiator fan won't start problems
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Interior fan doesn't work on high 
Solved
2017 Chevrolet Trax 155000 miles
Interior fan works fine on 1, 2 and 3 but stops when moved to 4
3 reports
Best answer (according to John B)
JO
Amechanic friend tells me there is a resistor that piggy backs on the fan system. It sits behind the dash assenbly so that needs to be partially taken apart to replace.
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