How Long Does an Air Charge Temperature Sensor Last?

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The air charge temperature sensor, also referred to as the intake air temperature sensor, works to monitor the temperature of the air as it enters your car engine. The engine’s computer has to have this information so it can determine how to balance the mixture of air and fuel. Hot air is less dense than cold air, so it needs less fuel to maintain a proper ratio. Conversely, cold air is denser than hot, and requires more fuel.

Every single time that you drive your car, the air charge temperature sensor is working, delivering information to the engine’s computer. In addition to monitoring engine air temperature, it also works with your car’s air conditioning and heating system. Given the workout that this component takes on any given day, it is vulnerable to damage. It can degrade due to old age, heat, or contamination, and when it begins to fail, it may respond slowly, or not at all. Like most electronic components in your vehicle, the air charge temperature sensor can be expected to last for about five years.

Signs that your car’s air charge temperature sensor may need to be replaced include:

  • Misfires
  • Hard starts
  • Irregular temperature in passenger compartment

Dirty sensors can cause problems, and they can sometimes be cleaned. However, this is a very inexpensive part, and the better course of action is simply to have it replaced. If you suspect that your air charge temperature sensor is failing, or has failed, consult a professional mechanic. An experienced mechanic can diagnose your engine problems, and if necessary, replace the air charge temperature sensor.


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Richard

15 years of experience
60 reviews
Richard
15 years of experience
Ford F-150 - Brake Pads Replacement (Front, Rear) - Fremont, California
Excellent communicator, walked me through the fixes and even gave me an idea of what might be next on the fix list.
Dodge Grand Caravan - Brake Pads Replacement (Front, Rear) - Union City, California
quickly diagnosed the problem but knew it would take longer than appt time to fix. since we had appt the next day for brakes he rearranged his schedule to do it all together the next day. very knowledgeable, friendly, and professional.

Tung

14 years of experience
285 reviews
Tung
14 years of experience
Hyundai Elantra - Brake Pads Replacement (Rear) - Mableton, Georgia
Very detailed and customer service oriented. Did an amazing job fixing my back brakes and even set-up a schedule of future appointments for my car!
Ram 1500 - Brake Pads Replacement (Front) - Marietta, Georgia
Tung showed up on time and was very friendly. Changed my brake pads in about 30 minutes and gave me recommendations on when to change the rear pads. Will ask for him by name next time.

Horus

9 years of experience
103 reviews
Horus
9 years of experience
Land Rover Range Rover - Brake Pads Replacement (Front, Rear) - San Antonio, Texas
Horace worked on my Land Rover today. Showed up on time and was professional and courteous. Replaced front and rear break pads. Great job!

Juan

11 years of experience
37 reviews
Juan
11 years of experience
Dodge Avenger - Brake Pads Replacement (Front) - Mountain House, California
Was very thorough in explaining the condition of the car and how the repairs will impact it’s service.

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