working on friends car,2002 grand am found gas in the oil, why? on 2002 Pontiac Grand Am

3.4l changed oil , next day found gas in oil again,i am baffeled, can you help

by in Mattoon, IL on November 15, 2012
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1 answer
ANSWER by , November 15, 2012
Check for defective fuel pressure regulator. Remove vacuum hose to the reg., eng.off, and see if gas is in hose. if so reg. is shot.