The Monégasque driver suffered an engine failure at the start of Saturday’s third place for the United States GP.
He swapped to an older spec engine for the remainder of the weekend, qualifying and finishing the race in fourth place.
Ferrari are hoping to get his Spec 3 engine back in the pool for the final two races of this season. “It [the damaged component] will be shipped back to Maranello, we had an extended oil leakage, not clear where it was coming from,” team principal Mattia Binotto told Motorsportweek.com.
“We need to analyse it and understand where it’s coming from and eventually decide whether it is still to be used or not.”
Leclerc switched to an older specification engine, a Spec 2, with Binotto acknowledging that it was lacking compared to his Spec 3 unit.
“It was not down [on power] by quite a lot, it was slightly down,” he said.
Leclerc finished the United States race 45s off the podium.
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