- Why AutoTechIQ
- Fixes
- Shops Near You
- Vehicle Symptoms
- What Are Common Car Failure Searches?
- What Do My Dashboard Warning Lights Mean?
- Why Does My Car Drive Weird?
- Why Does My Car Make Noises?
- Why Does my Car smell?
- Symptoms Without Summary
- Car Leaking Coolant
- AC Isn't Cooling
- AC Blowing Hot Air
- Shaking While Driving
- Overheating AC
- AC Smells Like Vinegar
- Heater Not Working
- Windshield Wipers Don't Work
- Car Leaking Water
- Car Leaking Red Fluid
- Car Battery Leaking
- AC Only Work Sometimes
- Shaking While Idle
- Shaking At High Speeds
- Evap System Leak
- Shaking While Braking At High Speeds
- Shaking When Stopped
- Shaking When Accelerating
- Radiator Leaking
- Pink Fluid Leaking
- Car Leaking Oil
- AC Not Working.
- Car Leaking Gas
- Power Steering Fluid Leak
- Bad Brake Caliper
Air Conditioning Inspection
A car air conditioner is a modern car climate system that is responsible for both air cooling and heating and ventilation of the car interior. When it rains, the air conditioner is useful as a dehumidifier for foggy car windows.
This system has a bunch of pipes, connecting rings, an air conditioning radiator and a compressor to which oil is added.
The easiest way to evaluate the efficiency of a car air conditioner is to measure the air temperature in the cabin using a conventional thermometer with the engine running and the climate system cooling mode turned on at maximum. The temperature of the air supplied to the cabin from the ventilation system should be approximately 41℉
A professional inspection of the air conditioning system is carried out in several stages
- visual check of the air conditioning system for metal corrosion, holes, cracks or other mechanical damage.
- Using special equipment (gas analyzer), a leak test is carried out. Using special equipment or an ultraviolet lamp, it detects freon, the vapors of which are released in places where the seal is broken, including from microcracks invisible to the human eye.
- Determine the level of refrigerant pressure in the air conditioning system and, if it is insufficient, refill the refrigerant.
- Preventative cleaning of the air conditioner radiator is carried out, with preliminary partial disassembly of the front part of the machine and washing with special liquids and solvents.
- Check the oil level in the compressor tank and top it up if necessary. If the machine has been in use for 5–7 years, a complete oil change is recommended.
- If an unpleasant odor appears in the cabin, antibacterial cleaning of the ventilation and air conditioning systems will be required. The reason for this is that over time, bacteria accumulate on the air conditioning evaporator in the car.
You also need to pay attention to your car's air conditioning because of health safety reasons. The less often the system is cleaned, the more bacteria and contaminants accumulate in it. In addition to the fact that the air becomes musty, the likelihood of respiratory tract diseases increases.
We recommend turning on your car's air conditioning for a few minutes once a month, as the system contains oil designed to lubricate the air conditioning parts. When turned on, it is redistributed throughout the system, providing a lubricating effect.
This will help keep the system in working order and increase its service life.
The AutoTechIQ ranking for Safety, Cost Avoidance, and Environmental Impact is
Humming Noise
A humming noise from the car can have different origins; it's typically friction-related and has a large pool of root possibilities. However, these are the most common causes:
- Tire cupping: Tire cupping is when the tires become uneven. The tread patterns typically show a bumpy wear pattern resembling a cup or orange surface. So, when the car moves, those irregularities press against the road, making odd vibrations and noises.
- Faulty wheel bearing: Wheel bearings are components behind the wheels that help them rotate on a metal rod below the car called an axle; this is also part of the steering system. However, the wheel bearings can have issues like overwear and lack of lubrication, causing extra friction and producing a humming noise.
- A/C failure: An air conditioning (A/C) failure can create changes in the airflow efficiency. If the compressor responsible for blowing the air through the AC vents fails, it'll likely produce a humming sound.
- Differential issues: The differential helps the wheels rotate on a metal rod below the car called an axle; they're essential for helping the wheels turn and get good road traction. However, they can have issues like a lack of lubrication and worn bearings that generate extra friction, causing a humming sound.
- Faulty fan clutch: A fan clutch is part of the car's cooling system; it controls the cooling fan that prevents the engine from overheating. However, it can become erratic or even stuck, creating a humming fan noise.
When driving at high speeds, a car humming noise can become an alarming distraction for many drivers. Note that dirt roads typically mask these types of noises. The humming noise might come with a grinding noise. Still, there are different symptoms to keep track of if you catch your car producing a humming noise.
Other Vehicle Symptoms
Below are just a few examples of typical Symptoms and Fixes your car might be experiencing
