Abnormal Noise on startup

[pwuser150731301452]

Hello everyone, I have an Alsvin MT 1.3 since April, 2024. I have driven it around 30K KM. Since last 3-4 weeks the car makes an abnormal noise initially when I switch on the ignition and then on startup. Its a strange whinning or siren sort of sound. This happens mostly when the car is parked for 3-4 hours or during the 1st start up in the morning. Now I have started observing a continous humming sort of sound when the ignition switch is on. I got the vehicle checked from Master Changan Alsvin but they couldnt diagnose the issue. Kindly of anyone can help in this regard.

[sardarg]

sir @pwuser150731301452 in the morning lift the engine hood. and turn on ignition only donot start the engine, try to locate the source of sound. localise it to section it is most audiable.
Afterwards start the engine leave it idling and observe if it varies with speed. it may help you isolate the problem.

[pwuser162557941033]

noise initially when I switch on the ignition and then on startup. Its a strange whinning or siren sort of sound.

Seems like fuel pump whine. It primes for a specified duration, about 2 seconds, on IGN switch on, then turns off. It runs continuously when the engine is running. As long as fuel pressure and all else is normal, it's a normal sound.

Recording posted here would be helpful if you believe the sound is abnormal.

[pwuser153796752163]

They couldn't diagnose the issue because there is no issue, it's your fuel pump working as it should. why even fret about things if there are no actual problems?