I recently bought a crosswind XL. I noticed that its aircon lets go of hissing sound (parang humihinga ang tonong) which varies from a second to 5 seconds long tapos mawawala na naman. I am pissed coz the Isuzu casa told me its normal daw sa Denso aircon ng XL (both front and rear).

Is this really true??

SA ibang SUV particularly the Adventure (which was my second choice) wala ganitong sound ang aircon.

help naman mga pare