The No. 19 Joe Gibbs Racing Toyota failed pre-qualifying inspection three times Saturday at Auto Club Speedway while the No. 1 Chip Ganassi Racing Chevrolet failed twice, as confirmed by a NASCAR spokesperson. As a result, the No. 19 team of Martin Truex Jr. will not be permitted to qualify for the race and will start from the back.
The team will also lose a crew member (car chief Blake Harris) for the duration of the weekend and serve a 15-minute practice penalty at the next NASCAR Cup Series event (Phoenix Raceway). Truex was the 2018 winner of the NASCAR Cup Series race at Auto Club.
For the No. 1 team and Kurt Busch, who is the 2003 Auto Club winner, they will be without car chief Nick Case this weekend and will serve a 15-minute practice penalty at the next event.