grinding sound after a/c turns on

[recklus]

guys, need help, bagong cleaning lang yung a/c with new compressor. after a few months nagkaleak last week, syempre pina-ayos ko naman. ngayon naman may grinding sound after i turn on the a/c that lasts 2-3 secs. one more thing, may sound lang kapag i use the car on a short or long distance, wala sya kapag cold start up, and it sounds like "kuurrrrrrruuuggggd" hehe. could it be the compressor kahit brand new?

[niky]

Brand new compressor.... or brand new surplus?

Is the grinding sound coming from up front, or from inside the dash.

Try to isolate it... turn the compressor off (usually with a blue button on the AC panel... but if this is your Lynx, it's a green-lit button) and then toggle the fan switch. If it isn't your fan, I sure hope you still have the receipts... sounds like a busted compressor clutch or a busted compressor... neither of which should happen with a new unit.

[knight21]

try mo din i-check yung idler bearing. baka kasi sumasayad sa bracket thus the grinding sound...

[banawe]

try checking kung naka align ba yung fan belt mo sa bagong kabit na compressor ... kasi that can cause the weird sound ...

pinalagyan mo ba yung compressor mo ng comppressor oil ??? kasi usually new compressor doen't have too much oil inside kaya may grrrr... ing sound

lastly try mo buksan and car mo without the aircon and see kung may tunog ... kung wala naman aircon may problem baka nga idle bearing nga ang problem mo

banawe a/s
regy

[recklus]

sir niky, nope its not a surplus, its a brand new one installed in my kia, yung sound definitely from the engine, pagkastart ko kasi (usually hot engine start) then press the a/c switch biglang tutunog. i also tried starting without pressing the a/c switch, ala naman, as soon as i press the switch, ayun, tutunog. nagtataka din ako kung bakit when i turn on the a/c for the 1st time of the day eh ala naman.

sir banawe, im not sure kung nilagyan nila ng additional compressor oil, all i remember nung pinacleaning ko is this electrical gadget that they connected to the system, mga 15-20 mins din yun pumping something, yung po ba yung compressor oil? after that freon na yung kinarga nila. btw the sound came out after having the leak fixed, yung leak naman is on the line connected to the condenser, possible ba na magleak din yung compressor oil?

thanks po pala sa replies

[kinyo]

"15-20 mins din yun pumping something" is the vacuum pump removing air from the system ... and yes, some oil may leak when when there is a freon leak although most cases do not need refill of oil

the noise can come from different places so it needs proper troubleshooting ... hopefully it just a worn out idler bearing and not the new compressor with slippng clutch or worse, worn due to lack of oil