Skip the auto shop - Our mechanics make house calls

Q: Smoke from engine and checked with nearby line lube express in petrol station. They said it's a problem with AC compressor bearing.

asked by on

Smoke from Bonet and bit noise other than engine noise , AC fan is running but no cooling. Nearby line express guys say it's due to jam in AC compressor bearing
My car has an automatic transmission.

Hi there. The seal on the compressor to the air conditioning system has a leak and caused the oil and refrigerant to leak out of the compressor. The bearings on the compressor shaft are lubricated with the oil in the compressor. If you are seeing smoke from the compressor, then the bearing is getting hot causing the oil to burn, or the oil is getting on the exhaust system and burning off. Check the compressor for any signs of oil leakage. If the seal is leaking, then I suggest replacing the compressor and recharging the a/c system. If you need further assistance with your a/c system not working and smoke appearing under the hood when the a/c clutch is active, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Smoke from engine and checked with nearby line lube express in petrol station. They said it's a problem with AC compressor bearing.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck shudders when turning corners.

When turning and the vehicle shudders, check the tires to see if they are coming in contact with the frame. If they are, then the steering stop is loose and has backed off causing the steering to steer at a...

Q: What is the evaporative emissions control system?

Gasoline evaporates, even in the gas tank of your Accord. If those fumes are allowed to escape into the atmosphere, they create hydrocarbons that damage the environment and also contribute to smog/air pollution. To help combat this problem, your car...

Q: I am going to attempt to change the wheel bearing or hub asssmbly on my car.

This is a repair that is going to take require some specialty tools and techniques to complete correctly. It would be highly advisable to have a certified mechanic perform this or possibly assist you with the repairs, especially if the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.