2007 90k miles LR3 SE
My AC compressor was replaced 2 years ago under warranty. Now its blowing hot air 1/2 the time, and the other 1/2 the time it works fine.

Usually I'll start car and it blows hot air, then after 10 minutes of driving it'll start blowing cold air. Not sure what to do.

Checked the refrigerant and its pressure is fine. Do you guys have any ideas as to what to do? I have googled this a bunch and haven't seen a possible solution to my problem and I don't live near a Stealership.

 

If the pressures are good on both the low and high side then it could be a temp sensor or climate control issue.

 

What is the part number for the temp sensor? I can't seem to find it.

 

Here is the part number 4603183. I believe they are referring to coolant temp sensor, would check to see if your temp is normal before replacing. Check PM.

 

Exactly how "fine' are your pressures?

Have you noticed that it only blows cold while you're moving, or will it start blowing cold after a few minutes of just sitting stationary?

 

Roverguy7

Had Freon sucked out and put back in any my system worked fine on the drive home. Since then it's back to working about 40% of the time. When it works, it blows super cold, and when it doesn't work it blows hot air. I've been told a "replacement climate control center" might help, and a Coolant Temp Sensor.

Should I try each of these?

What would you suggest I do if the freon pressure is fine at this point? Could the compressor be bad, or is it likely something else?

 

The compressor is probably not bad if it is working sometimes. Sounds like electrical issue. You need to read the info from the sensors before throwing parts at it. If you don't have a gap iid tool it is worth the investment. The climate control center or ATCM is very expensive. Good luck I am no expert but have been dealing with similar issues.