2007 Hyundai Elantra Q&A

2007 Hyundai Elantra Question: What is the high-pitched whistling noise when my a/c is turned on?

The a/c works fine but when it becomes hot outside, the noise gets louder. The max a/c setting on the knob does not work at all either. As you accelerate, the noise gets louder as well. -
Answer 1
COULD BE IDLER BEARING GOING BAD AND ONLY MAKES NOSE WHEN UNDER A/C LOAD -
Answer 2
Also have the ac compressor belt checked could be loose or defective. Has it's own belt. -
Answer 3
It could be your sway bar. If it is snapped it will make a thumping noise when you steer and will make no noise when going straight. It needs to be fixed immediately.http://www.lightdeal.co.uk/ -