hey guys! ive been reading up on this for a while now. but i have the loud whining under the hood that follows RPMs while the A/C is on. and it drags my motor down hard, drops like 300-400rpm at idle. dies mostly when coming to a stop unless i really feather my clutch in at crazy low rpm.

its obviously something to do with the compressor. now my question is, would i be able to fix this issue with just replacing the clutch/ clutch bearing part of the compressor? or just do the entire compressor? i would much rather just replace the bearing or the clutch assembly obviously for financial reasons. has anyone replaced JUST the clutch bearing or just the clutch and fixed this issue?

A/C works great other than the whine and car dies at every stop. cold air, just recharged freon. love the A/C, wish i could use it more in these hot Tampa summers.

 

also just to add, with A/C off engine runs great, never stalls, no crazy noise, ive ruled out any vacuum leaks too that would contribute to the stall outs.

 

Sounds like the compressor front bearing is on it's way out, replace the compressor, unless you have the tools to do a bearing and a front seal, [if you can even get them anymore, and if you can, they may cost as much as a reman compressor. 94

 

so its most likely a bearing within the compressor itself and not the clutch bearing? i was hoping it wasnt that...

 

If the noise is only there when A/C is on, then yes, it is the compressor front bearing, if it was the idler wheel bearing the noise would be there all the time. 94

 

gotcha... do you think that is also the cause of me stalling out? from the excessive drag of the front bearing? i hope so. heat index was like 102 today, i would really like to be in traffic and not stall every 2 min.

 

It is possible that the stalling is due to "drag", there is another possibility, engine is not "idling up" when A/C is turned on, to test unplug the A/C clutch relay, [need MM&Y to tell you where it is] with engine running turn on the A/C and note if engine RPM increase, [idle up].

The extra RPM are to compensate for the, [normal] drag of the A/C system, it is a "fixed" increase, there is no extra increase in RPM drag increases for any reason, [like a seizing bearing. 94

 

ok ill try that and get back to you! you are the man by the way! lol every issue that you diagnose that ive read has been correct so thanks for all the help to the community!

 

OK so. I unplugged the compressor relay so the clutch doesn't engage. I turn on the ac full blast and rpms only dropped about 100 rpm if at all plugged it back in and now the compressor won't come on at all. Neither does the drivers side fan. Frustrated

 

Actually I fixed the clutch/fan issue. I unplug the relay and rpms drop for a split second them rise about 100 above idle them level out, so the compressor is definitely causing me to drag some serious ***

 

You need a set of A/C gauges to see what the head, [high side] pressure is, if there is a restriction it will show up on the gauge.

Have you tried to supply power and ground directly to the fan, to see if the fan is good? 94

 

my gauges are in the mail right now, should get here within the next couple days. the fan is definitely good, i checked the fan yesterday by applying power and ground and it spun. but it still doesnt turn on with the a/c. the passanger side does, but i dont think ive ever seen the drivers side fan turn on. car doesnt overheat or anything. i also checked the 2 relays in front of the condensor and they both click when power is jumped to it. i couldnt check continuity between the other 2 posts because i only have 2 hands but they both definitely click

 

If we are talking about a 94 Integra the two relays behind bumper on the left side are the condenser fan relay and the A/C clutch relay, if the condenser fan relay "clicks" then it is either a bad relay, [main contacts burnt] or there is a connection problem between the relay and fan.

The condenser fan relay is the one with the blue/black, [to fan] black/white, [12V ign.] blue/yellow, [relay control] and white, [12V constant].

Turn things on and test the blue/black lead for power, if no power replace the relay, if there is power test for continuity between the relay and condenser fan. 94