Q: The car idles and stalls in cold weather conditions only, or if i don't heat it up all the way in cold weather conditions.

asked by on October 20, 2016

What could be the the problem if the car stalls and idles in only cold weather conditions?

My car has 46000 miles.
My car has an automatic transmission.

Hello there. Many common faults will cause your 2012 Mazda 3 to idle poorly and stall in cold weather. The most common faults would be the coolant temperature sensor, stuck open thermostat, radiator, water pump, MAF sensor, or a wiring harness fault. A qualified technician, such as one from YourMechanic, will be able to diagnose your vehicle’s rough running problem firsthand and perform any repairs required to resolve the issue.

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