Aoa everyone. I own an '08 Alto with 47k on odo. At 42k it's water body gave up as I had to change its radiator and the guy who installed the rad didn't connect the lower hose correctly and long story short, the water body gave up.
Ever since I replaced the water body (GMB) the car is giving whistling sound AFTER the rad cooling fan has turned on once or twice.
Upon initial inspection the sound seems to be coming from the belts/water body side.
All belts except timing chain/belt were changed at 37k.
What could be the reason behind the whistling sound? Over tightened pulley or something else. Please guide me.
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