AC not working..

[tom4bren]

Sounds like you fixed it till it was broke.

[etlsport]

Sounds like you fixed it till it was broke.

quite possible..


anyone have any ideas... here is what i know..

AC control panel will not power up at all when the car starts (ie no lights other than backlight, pressing buttons does nothing) if the ac does start with the car.. it will usually stop functioning within 5-10 minutes.. most often when i hit the gas

If i get out and remove the "heater" relay under the hood and replace it, the AC works fine, and blows cold... when I bypass the relay completely (connecting the 87 and 30 terminals with a wire) the ac works fine and blows cold when this relay is bypassed, the controls do not turn off with the ignition

If i get out and remove the "ST CUT" relay under the hood and replace it, the ac controls will turn on and function properly.. ac blows cold.. if i bypass that relay (87a to 30) the ac works fine and blows cold. it turns off with the ignition.. but will not turn back on unless i remove the wire and put it back in again

i have changed the AC fuse under the hood as well as the dome light fuse in the cabin as per the workshop manual.. still no luck... starting to run out of ideas

[etlsport]

think i found the problem...

I replaced my alternator with a 150 amp one.. the new one has a different style voltage regulator than stock.. this one causes the charging light to be illuminated pretty much all the time... looking through the elec. manual i found this..



only thing im having trouble wrapping my brain around right now is why bypassing that relay would make a difference.. since if the voltage regulator wasnt giving the proper output.. there would be no voltage to pass through the relay when activated... sigh..