How Does a Car Air Conditioning System Work?
Auto air conditioners serve well on hot summer days to make driving more pleasant by cooling the air and removing excess moisture in the car.

Featured articles and questions

How Far Can You Drive Your Vehicle on Empty?
Knowing how many miles you can drive on an empty gas tank prevents getting stranded. Nissan Altimas can go the farthest when the low fuel light is on.
How Do I Prepare My Car for Summer?
Summer's heat, dust, and stop-and-go traffic will take their tolls on your vehicle. Follow these tips to ensure optimum wellness of your car: Air Conditioning: Have your air...
The Most and Least Expensive Cars to Maintain
Luxury cars, such as BMWs, are the most expensive and Toyotas are the most cost efficient. Driving style also affects car maintenance costs.
When Should I Change My Oil?
Changing oil in your car needs to happen at specific intervals. Oil change intervals vary, but it's best to change oil every 3,000 to 7,000 miles.

Q: How often does my car need power steering, brake, coolant

The timing belt should be replaced at 105,000 miles. The engine coolant and the brake fluid should be exchanged every 45,000 miles. The manual transmission fluid should be changed every 90,000 miles. With regard to power steering fluid, like most...

Q: Check Engine Light comes on in hot weather

Hello. The Check Engine Light will come on any time that the computer sees a problem with the powertrain in the vehicle. In order to know where the issue is coming from I would need to scan the computer for...

Q: When should I change the engine oil? What is the best oil type for winter and summer?

The engine oil used for summer is typically thicker. Thinner oil in the winter allows it to warm up quicker and lubricate sooner. Thicker oil will take longer to warm up and perform its duties. Your vehicle may only want...

Q: Car overheats, usually in the stop and go traffic

The problem may be due to the hydraulic cooling fan not working intermittently. There is a technical bulletin number 1-21-11 that says to replace the cooling fan hydraulic motor, which should correct the overheating problems. Your fan may work but...

Q: Does Running My AC in the Summer Keep My Engine Cooler?

Automotive air conditioning (AC) will cause the engine to run hotter in the summer because it creates more heat in the engine compartment and there will be more strain on the engine to operate the AC compressor. The AC compressor...

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Recent articles & questions

P0900 OBD-II Trouble Code: Clutch Actuator Circuit / Open
P0900 code definition This trouble code is defined as the clutch actuator circuit being open. What the P0900 code means When the PCM (powertrain control module) detects an open circuit in...
P0875 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch D Circuit
P0875 code definition The P0875 code indicates that the transmission fluid pressure is not correct, according to the manufacturer’s specifications. What the P0875 code means The fluid pressure sensor provides the...
P0870 Transmission Fluid Pressure Sensor/Switch C Circuit
P0870 code definition A P0870 code indicates that the powertrain control module (PCM) has determined that the pressure of the transmission fluid is not within the desired range. What the P0870...

Q: After jumping battery windows don’t roll up or down with switches only when operating convertible

Be sure you have not activated any interlock (safety switch, often a push button on driver side typically) that will disable individual window activation. A fault such as this is usually due to an electrical failure. If none of the...

Q: Changed starter on 95 Ford Thunderbird. When connecting neg cable to battery, starter engages.

It is possible that the signal wire for the starter was hooked up on the same ring as the positive lead from the battery. This would cause the issue you are experiencing. I would recheck your starter connections to ensure...

Q: I recently bought a 2017 Nissan Frontier without auto headlig

According to Section 2-32 of the 2017 Frontier Owner's Manual, "even though the battery saver feature automatically turns off the headlights after a period of time, you should turn the headlight switch to the OFF position when the engine is...