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  1. Chevy Suburban Forum (GMC Yukon XL)
    2015 Yukon XL SLE, 5.3, 6 speed auto with 4WD and tow button, 124K miles. Never heard this noise until today. When driving constant 45 MPH let off the gas then moderate acceleration there is a sound coming from trans. Hard to describe, a groaning squeak, its short and abrupt. No slamming or...
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