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The pressures you are seeing in your system could be within the normal operating range. This means that the condenser fan cannot efficiently and quickly cool the AC system.A highly pressurized condenser fan results in distortion of the aluminum in the compressor, as well as leakage from the evaporator coils. At rest the voltage shows about 1.3v I think. Any idea what might cause this? It came along with a pressure gauge for low port. I checked some other 95 F150s stickers that also said 11 fl oz.
AC pressure switch. This set of Now that you’ve got a safe and reliable way to measure your AC pressure, you need to know what you’re looking for. We recommend getting the system evacuated then adding refrigerant by weight.I have a 2007 Kia Sportage that blows warm air when at a stop light or drive through. Learn more about how the car’s air conditioning system works here. I changed the air cabin filter and cleaned the condenser (with hose water and cleaner) but it didn’t fix the problem. Having air in your system with the refrigerant will reduce the efficiency of the system and change the pressures.

Car is blowing cool not cold air.After 20 minutes idling without a fan in front of condenser (did these readings first):After 20 minutes idling (I put box fan in front of the condenser to simulate driving airflow):*Compressor runs but doesn’t ever cycle/turn off unless I push the on/off buttonSafe to assume Low side is a normal, High side is low? Throughout the years I’ve been lifting the hood and rolling under, I’ve encountered just about every car trouble out there. Thank you, Nick Thank you for asking about your Buick Lesabre. You would top the system off with refrigerant once you’ve completed adding Red Angel.My 94 buick lesabre A/C works fine however tere is a leak I can not find. A low pressure on the low side could also indicate a clog somewhere in your system. Stumped as to why it won’t take fluid and up the pressure.Thanks for your question about your 2012 F250. It’s also possible that the fan clutch you received is faulty say it may be worth having a mechanic check that out.I need your guidance about my car’s AC issue, if you don’t mind. I assumed the gauge may be a faulty one so I put all the freon in.
The sticker is almost always correct but to be absolutely sure you can try calling your local Ford dealership and giving the service department your VIN and asking them to look up the amount and type of AC oil that your system requires.

Our best guess is that the coupler on the refrigerant can you bought isn’t working properly so it isn’t allowing the new refrigerant into your system.Hello I have a 2011 Hyundai Elantra GLS 1.8 engine. Basically I’m wondering if it’s just not spinning fast enough even when not fully engaged. This could have happened if you didn’t fully evacuate your air conditioning system before you installed the new refrigerant and oil or it could be an indication that you’ve got some clogs somewhere in your system increasing pressure.Thanks for your question about your Nissan Sentra. What the problem is? These gauges are relatively accurate and an inexpensive way to measure the low side pressure in your system.Unfortunately, the low side pressure is just one piece of the puzzle. Added appropriate amount of PAG oil, pulled vaccum, and charged 134a. If the system wasn’t properly flushed when the new components were installed that could account for the clog. Whys that?My compressor doesnt engage. These include using an inappropriate compressor lubricant, having a low or old oil system, or issues with loose wirings and slipping belts.Most of these issues and more can be exposed when you rigorously test your AC system’s pressure readings, and you have a clear understanding of what each reading means.

Then I realized it stopped the AC blowing any cool air even when the temp waa 75F at night. Or What might be causing my AC not to cool when it’s 90+ outside but work when it’s 80 or below outside. Any ideas why it is doing this?Thanks for your question about your 2007 Kia Sportage. Check to make sure there are no blown fuses and that there are no wiring issues and then re-assess the situation.Thanks for your question about your 2000 Chevy Silverado. The low side pressure is 25 PSI and the high side is 210 PSI. Pressures in your air conditioning system will vary significantly with as ambient temperature varies so those could also be high or low depending on what the temperature was when you made the measurements. Anyways if my sticker is only stating max oil and not nominal level should i have put 7 ounces instead? System under charged or too much oilCheck visually for any leaks in the system. It’s remotely possible the valve is bad in your AC system so when you try to add refrigerant it closes off but that’s very unlikely. The compressor and air dryer filter have been changed. I added a can and the compressor kicked on but was hot. Based on the high side and low side PSI readings, it could be that the system is overcharged or there may be an issue with the condenser being blocked. Maybe compressor clutch dissengage?I hope there isnt a major leak somewhere. The fan clutch you installed responds to increases in temperature and the demand of the air conditioning takes a long time to get heat to the fan clutch to get it to engage so it is definitely possible that is normal operation for your truck. I read that the pressure should not be this high?Thanks for your question about your 1995 Ford F150. AC splits into two halves, one is low pressure half and the other is high pressure and both sides are equipped with an AC pressure switch. SO IT SOUNDS LIKE A CLOG AS HE MENTIONED BELOW. What that pressure should be depends on the design of your system and the temperature outside when you take the measurement, but 100 psi with the compressor off may be just fine. Welcome to the BlueDevil Products Auto Blog! Thank you for asking about your Hyundai Elantra. To confirm, are you saying the A/C started blowing cooler after 2 weeks? Many of these refill cans come complete with a pressure gauge to help you discover a little bit of what’s going on in your system and to help you guess at how much refrigerant to dispense. Absolutely not. Unless it was extremely warm outside, those pressures do sound to be a bit high. Then I let off and it showed 30 lbs.

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