GMC Sonoma owners have reported 1 problem related to axle shaft seal (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sonoma based on all problems reported for the Sonoma.
It has been determined that water has contaminanted the oil in the rear differential causing a mechanical failure. I have been informed that my extended warranty does not cover this issue even though GMC is aware that problem with a vent tube location is one source for water infiltration. I have a GMC document with specific instructions for mechanics to check for the improper vent tube location if water is indeed found in the rear axle fluid.
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all problems of the 2003 GMC Sonoma
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