Roger Penske parts ways with Team Penske IndyCar leadership
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Issues discovered on Penske's Nos. 2 and 12 cars Sunday was also displayed on Newgarden's 500-winning car last year displayed at the IMS Museum.
The paddock remains discontent with Roger Penske's roles in the IndyCar series after another scandal bringing conflict of interest concerns into full view.
Twice-reigning Indianapolis 500 champion Josef Newgarden was planning to qualify for this year's race over the weekend when he and Penske teammate Will Power failed their pre-qualifying inspections.
Indianapolis Motor Speedway owner Roger Penske extended an invitation for Donald Trump to be the first sitting president to attend the Indy 500.