2003 A/C High/Low side specs

[rhilim]

Does anybody have the low-side and high-side pressures for a 2003 3.1L?

Currently having issues with A/C light blinking, recirc not staying on, etc. I am going to try the cleaning of the control module, but I just want to make sure I have sufficient freon in the system as well.

Sorry if this is posted in the forum somewhere - no luck in finding it.

Thanks in advance.

rhilim

[Speedy_1234]

If I not mistaken in front of the fans there one a red Button top then where you put freon green button is near the master cylinder and the blue one button is next to the fire wall passenger side a little low almost near the tail of the tranmission.

[taillight]

It all depends on tempurature but low side should be about 35-40 and evaporator temp about 35 f. High side can be from 150 to about 250 and be normal depending on outside temp. The low side will cycle up and down with the clutch so the swing might be more.

[rhilim]

Sorry it's been so long since I've been back here, but thank you for the specs. Turns out the freon was sufficiently charged so I proceeded with cleaning the control module, which seemed to fix it. This was the second time I have done this to this car, must not have cleaned it very well the first time because it wasn't very long ago when I did it.

I did notice that when I pulled the control module apart I found that one of the contacts on one of the knobs wasn't making good contact with the board. Since you can see where the contacts usually travel on the circuit board, I noticed that one of the four was only making contact for a brief distance on the circuit board, so I gently pried it in the appropriate direction to make sure it made good contact. Cleaned everything up, put it back together and presto...cold air!!

Thanks again for your reply!

rhilim