![]() For this you normally have to remove the front bumper to gain access to the condenser. If the condenser is dirty on your Cobalt, the simplest solution is to clean it. As a rule, there is no avoiding a change if the filter is dirty. ![]() Therefore, the filter performance will not increase significantly even after cleaning. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. This can be done, for example, with a vacuum cleaner or a compressed air system, removing at least a large part of the visible dirt particles. Instead of changing the cabin air filter in Cobalt, it is often recommended to first clean the filter. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturer’s recommendation. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. It also puts unnecessary strain on the entire AC system which negatively impacts the fuel consumption. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. The pollen filter, also known as the cabin air filter or microfilter, is responsible for filtering the air that the passengers breathe in Chevy Cobalt. If the pressure is higher than the recommended pressure, let some refrigerant out preferably into a rag to avoid exposure. Low side pressure values R134a vs R1234yf Ambient TemperatureĬonnect the pressure gauge to the low pressure (L) port in Cobalt. Check your vehicle’s owners manual or look under the hood to find the type of the refrigerant your vehicle uses. The pressure values based on ambient temperatures differ depending on the type of the refrigerant. Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. So, even if you recharged your Cobalt AC at the recommended pressure, the system could still over pressurize when the ambient temperatures get warmer. The refrigerant pressure is affected by the outside atmospheric temperature. Ambient temperature affect on refrigerant pressure ![]() An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. ![]() Just like with low refrigerant, the AC in Cobalt will blow warm air only if the AC system is overcharged with refrigerant. Note: See next section for recommended pressure values.
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