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Discussion Starter · #1 ·
I have just replaced my CP3 pump and all seems to be fine except I have a new noise that has developed. When I put the engine under a load (like going up a good hill or hammering on it) I can hear a distinct whine. It is not normal turbo whine it sounds more like a powersteering pump low on fluid, but I know that is not it either. My question is will a boost leak develop a whine/whistle, or is it more likely on the suction side of the turbo. Has anybody else had this problem?

Also is the air deflector that goes behind the fan necessary equipment, or can I leave it off. It is a real pain and if does not do anything but keep your fingers out of the fan then I am leaving it off.

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