TELMEX/Target Chip Ganassi Racing with Felix Sabates' hopes of winning a fourth straight Rolex 24 at Daytona were dealt a blow when the #01 entry was forced to pit for repairs.
The car – crewed by reigning Grand-Am series champions Scott Pruett and Memo Rojas, along with Scott Dixon and Juan Montoya – had been closing on the leaders during the sixth hour when Mexican Rojas clattered one of Daytona's unforgiving kerbs, damaging the Lexus Riley sufficiently to require it to pit for repairs.
Rojas' misfortune, however, was nothing compared to that of Michael Shank Racing's AJ Allmendinger, who had been leading at the time his #6 Ford-powered Riley stopped out on track. Unable to trace the problem, the team was forced to bring down the curtain on its involvement.
"I think, unfortunately, something in the motor suddenly popped,” NASCAR regular Allmendinger told the official Grand-Am website, “A sensor down inside suddenly failed and that triggered it. The motor didn't blow or anything, but it would be a four-hour process to get down to that sensor and change it. Unfortunately, by the time we did that, there would be no point being out there.”
Erstwhile third-place team, Krohn Racing, was similarly afflicted, with the team attempting to find the root of the problem which forced the Ford-powered #76 Lola to slow out on the circuit.
"We're not exactly sure what happened yet,” team stalwart Nic Jonsson said, echoing Allmendinger, “Darren [Turner] was out there, running very strongly and, all of a sudden, the engine just stopped - just like the #6 car."
Ganassi's problems left the #01 down in tenth place, but likely to lose more, while the Krohn effort had sunk to the lower reaches of the running order while the team attempted to find a cure. Buddy Rice's #58 Brumos Porsche Riley continued to lead at the six-hour mark, with Dixon, in the #02 Ganassi car, third, ahead of Christophe Bouchut and Hurley Haywood.