humming or whistling sound...during cold start

[dnomyar]

Help! I can't figure out where the whistling sound is coming from. A month ago the noise was already unbearable so I had my ride checked and the findings was a defect in the bearings of the alternator and a/c compressor. Had these bearings replace including the belts. The noise was gone and the purring of the engine was noticeably smooth. However, after a month, there seems to be a whistling sound (like a subtle hiss of a whistling kettle). I observed that the sound occurs only during the morning, then after the engine runs for a few minutes, the whistling sound disappears. The whistling sound is not present during start up in the parking lot when leaving the office at 6 pm.

My ride is a 1999 model feroza.

Appreciate your inputs on this.

Thanks in advance.

[slowrockmusic]

Help! I can't figure out where the whistling sound is coming from. A month ago the noise was already unbearable so I had my ride checked and the findings was a defect in the bearings of the alternator and a/c compressor. Had these bearings replace including the belts. The noise was gone and the purring of the engine was noticeably smooth. However, after a month, there seems to be a whistling sound (like a subtle hiss of a whistling kettle). I observed that the sound occurs only during the morning, then after the engine runs for a few minutes, the whistling sound disappears. The whistling sound is not present during start up in the parking lot when leaving the office at 6 pm.

My ride is a 1999 model feroza.

Appreciate your inputs on this.

Thanks in advance.

check mo mga hose na naka dikit sa TB mo mga hose ng hangin baka may crack or butas