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Weird Whining Noise at Low Speeds

1K views 3 replies 4 participants last post by  billdo_83  
#1 ·
I've got a weird whining noise coming from somewhere inside the engine when I'm driving slowly around in parking lots (1st, 2nd gear, and reverse). Doesn't sound like a squeaky loose belt. As I accelerate, the whining noise gets higher pitched and seems to go away. I don't know because my Apexi N1 then gets louder and it's tough to hear. At idle, there is no noise at all. What could this be?

I only have an Injen intake, Apexi N1, Apexi downpipe.