GMC Sonoma A/c Accumulator
GMC Sonoma A/C Accumulator Problems and Quick Solutions
The GMC Sonoma A/C accumulator rarely fails, but when it does, it causes several inconveniences. First, if the accumulator becomes saturated, it can no longer hold more moisture to keep the refrigerant from entering the compressor, thus degrading the performance of the compressor or even cause it to fail. Second, if the desiccant bag in the accumulator breaks open, the desiccant debris can contaminate the A/C system. Third, if the accumulator has clogged, it can cause problems that may result to low cooling performance and leak. That said, here are detailed solutions to each problem associated with the A/C accumulator.
A/C accumulator becomes saturated
This happens if there's a leak in the accumulator that causes moist air from the atmosphere to enter the accumulator. The leak often occurs in the o-ring, but sometimes appears in the hoses and other parts of the A/C system. If you suspect that there is a leak in the A/C system, the only solution is to stop the leak and then replace the saturated A/C accumulator. Do this as soon as you detect the problem because a saturated accumulator can no longer hold the refrigerant and prevent it from entering the compressor. Note: When the refrigerant enters the compressor and mixes with the vapor, it forms a very corrosive hydrochloric acid that can damage your system.
Desiccant bag breaks open
The purpose of the desiccant bag inside the accumulator is to trap moisture and prevent it from entering the compressor. If it breaks open, the debris will mix with the refrigerant and lubricant, causing clogging in the accumulator. When this happens, the cooling performance will suffer, causing the blower to deliver little or no cold air to the cabin. The only solution is to replace the accumulator.
Clogged A/C accumulator
Aside from the desiccant, debris and other contaminants can clog the accumulator, which decrease the cooling performance of the A/C. And when it is clogged, the accumulator will not function properly and cannot keep the refrigerant from entering the compressor. The refrigerant will then mix with the vapor in the compressor and become a corrosive hydrochloric acid with will eat away the A/C hoses, resulting in leaks. The solution would be fixing the hole and replacing the accumulator.