FORT WORTH – A little past halfway in the Verizon IndyCar Series practice at Texas Motor Speedway, something malfunctioned on the No. 15 Mi-Jack Honda of Graham Rahal as he exited Turn 4.
Rahal then limped around the 1.5-mile oval before coming to a stop in the middle of Turns 3 and 4.
When he spoke with NBCSN’s Kevin Lee, Rahal and his team were not sure if the engine had given out.
“It might not be that, but we lost drive,” Rahal said. “It might be in the input shaft or something in the differential. All of a sudden it free revved and popped. We don’t see anything for sure that shows it’s an engine.”
Rahal Letterman Lanigan Racing has until 4:15 p.m. CT time to diagnose the problem. That’s when qualifying for the Firestone 600 commences, with Rahal set to be the second qualifier.
“We’ll get it sorted out,” Rahal said. “From where we started with qualifying sim, the car felt comfortable. Being second (out) will be hard. A lot of guys have already done two qualifying sims.”
He later posted that it’s a gearbox failure affecting him.