Q: Leaking clear but oily fluid when AC is running. It is located through the front end under the hood (by the aluminum cover insulation in front)

asked by on

The engine sounds labored when you put the gas. It has a sound like a vacuum leak in some sort of weird way. The inside of the vehicle smells funny when you put the air conditioner on. When the truck is parked it leaks a clear oily liquid and it starts to overheat with no leakage of coolant.

My car has 145000 miles.
My car has an automatic transmission.

Hello. From what you describe, it would appear that your vehicle may possibly have a refrigerant leak in the AC system. I would carefully inspect the area where the fluid is coming from to see if you can figure out the source of the leak. It may be possible that a component, such as an AC line, or the AC condenser have developed a leak and are leaking refrigerant from the system.

This may also explain why the vehicle may be overheating. An AC leak can cause the condenser to overheat, which may explain both the engine overheating and the smell when the AC is activated. The condenser is located near the front of the vehicle and functions much like a radiator, with air passing through it, from a fan, or as the vehicle moves forward.

If the AC is still blowing cold air and there is a leak, then the system will likely being to blow warmer and warmer, until the air is no longer cold. I would recommend having a professional technician, such as one from YourMechanic, visit your location to diagnose the leak and proceed with the appropriate repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Leaking clear but oily fluid when AC is running. It is located through the front end under the hood (by the aluminum cover insulation in front)

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: AC clutch fan relationship

The fan is kinda related, in that it is needed and commanded by the AC system to help cool the hot condenser. Its electrical circuit is separate from the AC electrical circuits. Definitely check the fuses first, then check...

Q: My truck won't start on the key but will start straight up on a jump start I have changed the glow plugs and the deisel pipes

Hello. If your car will not start on its own, but will with a jump start, then the first thing I would check is the battery. If the battery is old or worn it may no longer have enough cranking...

Q: How do you dehumidify the interior?

While your Accord is designed to protect you against temperature extremes, it’s not airtight. That means humidity can rise in the cabin. To dehumidify the air, just follow these easy steps: Switch on the fan. Switch the air conditioning...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...