Where is low pressure ac access - 2007 Jeep Patriot Sport

Depends on the year. Cars in the early 90's used R12. Anything later uses R134a. The size of the charge ports will define the R134a port. An adapter is needed to fit on the charging hose. R12 requires no such adapter. Ther charging label under the hood will tell you what refrigerant is needed too. Since you failed to give enough information on what make and model car you have, a general answer for the location of the low pressure port will be given. On the compressor, the larger diameter hose connection is the low side. Connect there, or look for the drier/accumulator (Large diameter silver container near the firewall). Connect there. You will need to access the AC information label under the hood to determine how much freon to add to the system.

Usually close to the drier in the tube on the low pressure side. Drier looks like an aluminum cylinder about as big around as a soda can and twice as tall with two aluminum tubes coming out of it. The port has a screw off cap to access.

it will be in the larger pipe near the compressor or in the line at an accessible point.. The low pressure is the suction line from inside the car to the compressor.

Typically the the low pressure/suction line is a bigger pipe/tube, as far as location it depends on the car. The bigger AC line is almost 99 percent of the low pressure. Usually on the cap it will say most of the times to there is a different hydraulic fitting for the low and high side. Most cars I have seen have a little tag that will say suction or low pressure line, and or discharge high pressure.

If you are re charging the gas, always use the low pressure side of the system.

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You low pressure port is against the firewall just below the center of the cowl and is best accessed from the drivers side

The low-pressure service access gauge port valve is located on the evaporator to accumulator/drier suction line near the dash panel at the A/C evaporator core outlet tube.

I looked for apicture to help you better but I can't find one, sorry.

follow the thicker pipes vs. the thinner pipes to find the low pressure side fitting. It might have a blue or black screw on plastic protective cap with an o-ring.

The charge kit will have a tube that has an end that fits only the low side quick connect pressure fitting.

Good luck getting colder air conditioning!

It is under the car,near the compressor on the large ac line,kinda hard to get to,if this was at all helpful,please rate,thank you.

The low pressure valve is down by the AC Compressor. It is part of the aluminum manifold that connects directly to the AC compressor. It is accessible from above, but easier to reach from under the car.

By the way, is there any particular reason why you want to recharge your AC system? If it isn't working, adding refrigerant will not necessarily fix the problem. If the refrigerant has all leaked out, you probably need to evacuate the system first.

at the compressor beneath the car no access at the top