2001 Rx300 - A/c Noise After Belt/seals/water Pump Maint.

[tomjode]

Hello,

I did the timing belt, water pump, pulley and seal maintenance about a month ago. It all went well and the vehicle runs fine..........except when the A/C kicks in it makes a low humming sound at idle or stopped in traffic. When I get the vehicle going it goes away. The output seems as cold as it ever was at a stop or moving. I am going to ceck the belt tension and the actual A/C output temp but thought I would check here to see if ayone had any thoughts or other items I could check out.

The vehicle has 126000 mile on it. We have never had the A/C serviced.

Thanks for looking!

[code58]

Hello,

I did the timing belt, water pump, pulley and seal maintenance about a month ago. It all went well and the vehicle runs fine..........except when the A/C kicks in it makes a low humming sound at idle or stopped in traffic. When I get the vehicle going it goes away. The output seems as cold as it ever was at a stop or moving. I am going to ceck the belt tension and the actual A/C output temp but thought I would check here to see if ayone had any thoughts or other items I could check out.

The vehicle has 126000 mile on it. We have never had the A/C serviced.

Thanks for looking!

Did you do the work yourself? Did you used original parts? Have you looked under the hood to try and identify where the sound is coming from when it is making it. If the A/C/Alt. belt is not tight enough it could make it. If you have Harbor Freight Tool stores in your area, I would suggest getting a "mechanics stethoscope". It is one of the most useful tools that I own, and will aid you tremendously in identifying what is causing the noise. You can probe any area you think may be the source to identify any rotating noise, bearings or other wise. I use it around the fan belts and other moving parts, JUST BE VERY CAREFUL!