GMC Sierra 1500 owners have reported 1 problem related to oil pump (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sierra 1500 based on all problems reported for the Sierra 1500.
Low oil pressure while in motion. Split o-ring on oil pump pick up tube, metal debris in screen for oil pressure sensor/ afm valve lifter manifold. No valve shield on afm valve in oil pan. High oil consumption.
See
all problems of the 2008 GMC Sierra 1500
🔎.