One problem related to oil pump has been reported for the 2008 Chevrolet Suburban. The most recently reported issues are listed below.
New car purchased in 2008. Multiple issues with car consuming excess oil and losing engine power. 27,000 miles had to replace all amf lifters in engine 29,000 miles had to replace throttle body assembly system 31,000 miles had to install new oil pump, gasket and seal 32,000 miles had to replace oil gasket 37,000 miles oil intake system plugs burning oil and oil on intake valve. Had to clean engine and installl 8 valve seals.