Ask an expert
![Cawdron02](themes/aaAle/images/interface/profile-pic-placeholder.47cf740a.png)
Why does my car surge when the Air con is on
![Anon](/assets/aa/aa-avatar.png?m=1466990309)
Hi there,
This happens generally because the A/C compressor (pump) is continually clicking in and out of operation in order to keep the vehicle cool. This adds load to the engine which translates to a small surge as the power drops a bit when the loading comes on. If you believe this is out of the ordinary, it might be best to get the car checked to make sure.