Any 4l60E Trans Experts out there - Chevy Nova Forum
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Old 11th-January-2017, 11:40 AM   #1

Title: Nova Guru
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Any 4l60E Trans Experts out there

Helping a buddy out with a stock vortec 350 and 4L60E trans. Basically all stock, stock type exhaust so it's very quiet. The issue is there's a low pitched whine under light loads at slow cruising speeds (say 30 to 40mph). Will do it in every gear. It will also make the same noise while braking, say 15mph to complete stop. Very controllable by the throttle at cruising speed.

It shifts great, even full throttle. It doesn't do it in neutral, any speed. The best way I can describe it, is like when a power steering pump is low on fluid. That type of whining, but 1/10 as loud. Me writing this out, sounds like the tranny pump is going out, but would it still have firm shifts? Thanks for any help.
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