Woods said he was having issues with his takeaway during Friday's second round and worked on the range into the evening with his coach, Sean Foley. But he noted that it remained a problem.
"I just haven't got my takeaway right. It's off," he said. "Consequently, the whole patterning is off. Just one of those weeks where it's just a fraction off, and a fraction off on a setup like this, it's going to cost me."
Woods' worst finish in a major in 2013 is a tie for 32d at the U.S. Open at Merion. His other major finishes this year are a tie for fourth at the Masters and a sixth-place deadlock at the British Open. His last win in a major came at the 2008 U.S. Open.
Phil Mickelson, the British Open champion, had one of his poorest days in a major, making a triple bogey and a double bogey in a 78. That left him at 220, 74th in the 75-player field.
Mickelson, who did not speak to reporters after his round, hit just five fairways and needed 34 putts in his round.
It was Mickelson's highest score in a major this year. He shot 78 twice last year in majors, in the final round of the U.S. Open and the second round of the British Open.
Jason Dufner, who will be in the final pairing Sunday for the second straight day, said he will try to utilize the main lesson he learned from his close call in the 2011 PGA, where he lost to Keegan Bradley in a playoff after bogeying the last three holes of regulation.
"Patience," he said after shooting a 71 to stand one stroke behind Jim Furyk after three rounds.
"There's a lot of guys that have a chance to win this [Sunday]. It's a tough golf course. Guys are going to make bogeys. Guys are going to make birdies. You don't have to play perfect to win these events. You'd like to play perfect, but I just think patience is of the utmost importance on a Sunday in a major. You're never really out of it."