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Re: 1992 fire bird Ac help?
You need to have your system evacuated ac a service center i wont pay more than $5o for that cause u got r12 in there n u cant buy that anymore then u need r134a fittings to go on urs napa has the good ones i wold charge yourself case theyll charge $70 dollars a lb for r134a that u can 4 $7
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Look under the air cleaner box,or it will be near the fire wall on passengers side .Look for the large ac line coming from the ac compressor,and follow it towards the firewall,it will be there,Rate this please if it was at all helpful,thank you.
find your evaporator inlet outlet lines on the fire wall usually near heater core inlet outlet lines. then follow both lines until you find the one that goes to the compressor. that is your low side and the port should be on there
this should be done by a certified A/C technician with the right tools, the system must be evacuated and then recharged with the correct amount of freon,doing anything less will cause problems. please rate my fix as i strive to be the best,nned more help get back to me
Check the a/c lines entering the firewall. Large hose should be cold and small line warm-hot.If o/k, may have vacumm leak to underdash control. If vacumm is lost the system will revert to heat and defrost. Could also be the air blend door is stuck. Maybe something dropped down defrost vent on dash. If this helps Please rate
open the hood it will tell you what kind of freon it needs also your owens manual.and remember turn car on and and ac on high conect the freon hose that it comes with shake the can and turn it upside down when filling the ac if your a lady please put your hair in a bunn and make sure you dont have any loose things on hope this helps aways be safe around cars