Dogbone

(continued from below)

My advice, check and/or tighten your A/C drive belt.

Then check your static pressure on the low side without compressor running, should be around 80 psi or so on an 80 degree F day (rule of thumb, 1 psi per degree F).

When compressor is running, the low side should drop to around 35-40 psi.

Hopefully you'll find you simply need to tighten your A/C belt, and maybe charge your system.

Good luck!

Bypassing the belt protection system should not affect the function of the pressure switch, located low behind the front grill near the radiator. Nor should it affect the function of the evaporator temperature switch that cycles compressor to prevent evaporator from freezing.

The clicking you hear was most likely the clutch engaging/disengaging rapidly. Something is causing the compressor to cut in and out. This could either be a loose connection or the pressure switch simply doing it's job, indicating an undercharge or overcharge condition.

The screeching, probably drive belt slippage, could be as simple as the A/C belt needing tightening, or worse the compressor seizing up.

Hi darsdoug.

First, you need to upload your picture(s) to a web hosting site, like Photobucket.

After this cut and paste the url of your pic to your post.

Then, when you type out your post here, you type

In the FAQs here they explain it like this which may be less confusing:

http://www.ultimatesubaru.org/forum/faq.php?faq=vb3_reading_posting#faq_vb3_attachments

To include an image that is not uploaded as an attachment and is located on another website, you can do so by copying the full URL to the image, (not the page on which the image is located), and either pressing the 'Insert Image' icon or by typing after it, ensuring that you do not have any spaces before or after the URL of the image. You can insert pictures from your albums (?) in this way too.

Anyway, I hope this helps. Good luck.

Take care,

Rob