I have a 95 200sx and it makes this weird sound or hum that increases and decreases in accordance with RPMs. I think it may be the AC condenser but it does this when I am not runnin the air at all. Could it be the condenser itself? I am not to familiar with what all is in that area but i'm pretty sure that its something connected to the belt which I guess is referred to as the drive belt. Anyway I have ruled out the alternator as it runs fine. I took it to autozone and had them do a free systems check and said nothing was wrong which was to the contrary of the check engine light that has been on for the past 2 years but I think thats a short or somehting. Back to the noise, its kinda like its pulling down the engine and the engine rattles when it bottoms out. I have used a long screwdriver and listened to what I could get to but I'm not sure what it could be. Is it a pulley?
- posted
20 years ago