Two problems related to differential unit have been reported for the 2004 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Tahoe based on all problems reported for the 2004 Tahoe.
I have a 2004 Chevrolet Tahoe. At 59,000, a pinion seal leak was discovered. I took it the next day to the Chevrolet dealer where I purchased the vehicle new. Upon evaluation, it was determined that the leak had resulted in excessive metal friction in the gears, requiring a complete overall. There is no warning system for low differential fluid and leaks are not visible from the ground as any fluid normally blows off while driving. The seal on the rear axle pinion, which provides power to the rear wheels, could leak fluid, causing the wheels to seize and lock. Note that gm has recalled many similar models, but not the Tahoe at this time.
2004 Tahoe with wobble in the steering mechanism. Customer states the steering mechanism wobbled while on the way to florida. Customer had another incident with the front differential and carrier bearings. The consumer experienced a wobbling in the steering mechanism and the Chevrolet dealer corrected the defect in January 07. The consumer stated that he had an inspection performed in may 2007 at thielen motors which entailed a front differential pinion, carrier bearings, a related drive train elements and metal shavings in the differential unit which means possible defect. The consumer stated would like the defects investigated and reimbursement for the repairs performed on the vehicle.