Q: Green AC oil coming out of the condensation line after recharge

asked by on

AC was blowing warm, hooked up a can of refrigerant, psi read 15psi, charged with compressor engaged to around 40psi. Air then was cold. came out 15 min later green slime all down frame and on ground. No visible leak at fire wall , no visible leaks anywhere else but out of drip tube. Recharged a day later after 10 min drip becomes green and psi slowly drops. Evaporator? ORINGS? any help is greatly appreciated.

My car has 70000 miles.
My car has an automatic transmission.

If you are seeing the green oil dye coming out of the A/C evaporator drain tube then you most likely have a leaking evaporator or expansion valve on the evaporator. The green dye can be seen using yellow glasses and a black light.

You can have the refrigerant reclaimed and remove evaporator. Use a black light and yellow lens glasses to find the leak on evaporator. Before you do this, I’d also suggest using the light and glasses to look over the entire system to see if there are any other leaks present. Make sure to check compressor and condenser good.

If you need some help with these checks consider enlisting a certified mechanic, such as one from YourMechanic. They will be able to help you diagnose the source of the leak and make the necessary 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. Green AC oil coming out of the condensation line after recharge

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: Car stalls at traffic lights

If this is happening primarily at stop lights, it may be related to a dirty or faulty idle air control valve. This is a unit in your car's intake system that monitors the flow of air into the engine and...

Q: Car leaking gas and oil

Fluid and oil leaks unfortunately will only get worse over time. The main fluids that could be leaking from the rear could be a serious concern for the brake fluid or fuel. Either of these fluids leaking could be potentially...

Q: Suspension stiff

Generally suspension components will not get stiffer unless there is something in the suspension system that is seized or damaged. A full inspection of the suspension system should be carried out. Loose steering on the other hand generally happens when...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.