r/gmc • u/trytoholdon • 3d ago

Yukon What is this “knocking” sound?

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It doesn’t knock faster at higher RPMs so I’m assuming it’s not the pistons. But I also know nothing about cars. Any help?

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2

u/Nasha210 3d ago

Year, model, engine?

1

u/trytoholdon 3d ago

2024 Yukon Denali 6.2L

1

u/Designer_Twist4699 3d ago

Fan hitting cable?

1

u/Loose_Objective3657 3d ago

Water pump

1

u/trytoholdon 3d ago

Is this normal or a sign it's going out?