I have a 2005 Suzuki Aerio. The AC is blowing out air, but it
doesn't get cold.
You are most likely not getting any cold air because your A/C compressor is not engaging when you hit the switch. A number of different problems could give you this result.
First, you could have a blown fuse; that would be the cheapest and easiest solution. Second, your A/C system may be low on freon, and a low-pressure safety valve may be keeping the system from operating. However, rather than simply adding some freon to your system, it makes more sense to borrow a set of A/C pressure gauges and hook one up to the low side of your system (i.e., at the port where you would otherwise add R-134a refrigerant) to get an accurate pressure reading. A slightly low reading indicates that natural wear and tear on the system has let enough of the R-134a out of your system that it needs to be replaced. However, an inappropriately high or low reading not only indicates that you're low on freon, but also that there's a more substantial leak somewhere in your system. In this situation, adding refrigerant without addressing the leak may damage your compressor over time, as crucial lubricating oil drips out of the system and isn't replaced. A third and less likely cause for your problem is that the dashboard switch to turn on your A/C may be broken. This does happen, though if the switch is lighting up when you engage it, it's probably not the problem. Fourth, and most expensive, your A/C compressor may have failed. This would be somewhat unusual in a 2005 car, although it's not out of the question if you have used your A/C system a great deal.
Because of the cost of replacing damaged A/C components, it may make the most sense to let a certified shop handle any A/C system repairs once you have an idea of what's wrong. Full servicing of your system will evacuate all existing oil and refrigerant, identify and fix any leaks, and then vacuum test the system before filling it with fresh oil and R-134a. The end result will very likely work better and last longer than the cheap fix of dumping a can of R-134a into the system and hoping for the best.
A number of years ago, I lost all freon and pressure in my A/C system when a rock kicked up from the street hit the A/C cooling condenser and caused a pinhole leak. I couldn't find the leak; I only knew that my A/C system had lost pressure. That's the kind of problem that an A/C service center will be able to diagnose and fix much better than someone without the right equipment.
Jun 01, 2011 |
2003 Suzuki Aerio