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ece2k2 · 16th August 2007, 13:15

Hi guys,

For the past 2 weeks, I am getting a low volume squeal noise (sounds like whistling) which comes from the car engine side. This noise comes only in the morning first drive and does not appear during the other times of the day. It does not come when the engine is idle. Characteristics of the noise are:

1. Noise comes during the complete morning first drive - around 7 minutes. Am not sure if the noise will come if I drive for more time though
2. Noise comes only when the car is in a gear and moving. The noise is like a high pitch whistle (very low volume) when giving throttle above 1500 RPM. Noise dies away like kkaakkkaaaarrrrrr sound when the engine moves from higher RPM to lower RPM when throttle is not given after inducing the noise.
3. Noise comes probably after revving the engine to 1500 RPM and above, when the car is put in gear. Below 1500 RPM, the noise is not audible
4. Pitch and volume of noise seems to be function of the throttle/RPM
5. I am getting this issue only after the 30000 KM service done recently

When I explained this issue to the RAC mechanic, he told me that the issue is because of hardened belt and he lubricated it. I did not get the noise for a couple of days after lubrication, but started getting it again. The mechanic also suggested to replace the belt during the next service, which is around 5 months away. Please let me know if this is safe enough.

Thanks & Regards,
Karthik.

16th August 2007, 13:15	#43 (permalink)
ece2k2 BHPian Join Date: Jun 2005 Location: Bangalore Posts: 142	Sound from Siena in cold mornings - advice requested! Hi guys, For the past 2 weeks, I am getting a low volume squeal noise (sounds like whistling) which comes from the car engine side. This noise comes only in the morning first drive and does not appear during the other times of the day. It does not come when the engine is idle. Characteristics of the noise are: 1. Noise comes during the complete morning first drive - around 7 minutes. Am not sure if the noise will come if I drive for more time though 2. Noise comes only when the car is in a gear and moving. The noise is like a high pitch whistle (very low volume) when giving throttle above 1500 RPM. Noise dies away like kkaakkkaaaarrrrrr sound when the engine moves from higher RPM to lower RPM when throttle is not given after inducing the noise. 3. Noise comes probably after revving the engine to 1500 RPM and above, when the car is put in gear. Below 1500 RPM, the noise is not audible 4. Pitch and volume of noise seems to be function of the throttle/RPM 5. I am getting this issue only after the 30000 KM service done recently When I explained this issue to the RAC mechanic, he told me that the issue is because of hardened belt and he lubricated it. I did not get the noise for a couple of days after lubrication, but started getting it again. The mechanic also suggested to replace the belt during the next service, which is around 5 months away. Please let me know if this is safe enough. Thanks & Regards, Karthik.