Q: Compressor shaft seal leak

asked by on

I use a maxima 2004.This year march till date have changed compressor three times due to shaft seal leak. The mechanics in my state don't seem to understand what has been causing the leak. Could it be a blockage in the ac system forcing the compressor to leak? Can u help me identify what seems to make all the compressor I bought to be leaking oil at the shaft.

My car has 190000 miles.
My car has an automatic transmission.

Hi and thanks for contacting YourMechanic. Put a manifold set (A/C gauge set) on the A/C ports and check the system when it is running on high A/C. Look to see what the pressures are on the high side and the low side.

For normal use, the pressures should be 55 to 20 on the low side and 250 to 170. If the pressures are higher on the high side and exceeding the limits, then the seal on the pump will blow out. If the A/C has high pressures, then the FOT (fixed orifice tube) is plugged up and needs replaced. However, make sure that the A/C oil is in the system for the compressor or the compressor seal will leak. If you need further assistance diagnosing your vehicle, then seek out a professional, such as one from Your Mechanic, to help you with your A/C problem.

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. Compressor shaft seal leak

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: Peter, I have a 2004 Nissan Pathfinder and the engine light has been on for years. I lived in Colorado and it always passed the

Hi Ron. Thanks for contacting us today. In regards to the catalytic converter replacement, you can request an estimate to have one of our mobile mechanics come to your location and complete this service by clicking this link and then...

Q: What is the part cost and labor charge to install an alternator on a 2008 Lexus es350 Thank you

Hi there. Your Mechanic has several available technicians that can assist you with an alternator replacement. Quotes cannot be provided through the ask a mechanic portal and your request have been forwarded to customer service. Please have your vehicle make,...

Q: Humming sound when AC on

If the noise gets louder when you accelerate and goes away with the A/C off then the problem is with the internal bearings within the A/C compressor itself. You should have the A/C compressor checked and replaced if noise is...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.