Problems of Using A/C Sealant

Solidified Sealant Trapped In Cylinder

A/C sealants, also known as stop leak, are designed to be a ‘quick fix’ to seal leaks in the A/C system. The sealant is activated when it reacts with oxygen and/or moisture.

However, sealants can crystallize in the system, which can cause more harm to the A/C system. While the leak is covered by the sealant, this seal could possibly only last a few months. Furthermore, the sealant will remain in the system, and it could react with moisture already in the system, which comes from low refrigerant, causing major issues to the whole A/C system.

Listed below are ways in which a sealant can negatively impact the A/C system:

  1. Crystallization can happen in the orifice tube or expansion valve (where moisture is present) clogging or restricting the A/C system.
  2. The crystallization restricts the oil flow back to the compressor causing compressor failure.
  3. If a technician begins the process of recovering the system (without [...]

AC-system's-pressure

On some GM applications the high side service port is located past the condenser and before the orifice tube on the liquid line. This makes diagnosing by gauges deceiving. Usually, the high side port is found before the condenser. With the port in front of the condenser, it gives you a more accurate understanding of what the pressure truly is going into the condenser. With the high side after the condenser, you could show a pressure reading that is false, because the condenser could be partially blocked. Therefore, the only reading you are getting is what is exiting the condenser.

The correct way to diagnosis this type of system, with the service ports so close together, is through temperature testing:

  • Check the temperature at the inlet and outlet of the condenser.  *An acceptable temperature differential is 30°-50°F .
  • A low temperature [...]
Car Summer Tips AC Cooling
Summer time Car Tips To Avoid The Auto Blues

Car giving you the summer time blues? From AC vs. rolling the windows down to keeping your pet safe, here are answers to your summer driving questions.

Like most people, chances are good that when summer time rolls around, you’re ready to get in the car and go. From a day trip to the beach to a weekend getaway, summer is all about traveling and having fun. With the snow gone and heavy spring rains in the past, you probably think nothing of getting in the car and taking off. But what you might not know is that the heat can be just as tough on your car as driving in winter. From keeping an eye on the coolant fluid to cooling off a parked car, here are some tips for safe and comfortable summer time driving.

Car Summer Tips [...]</p><div class=

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