Friday the 13th producer Frank Mancuso Jr. didn't get on with the films director Danny Steinmann. Mancuso called Steinmann a pervert and called the film a soft core porn sex movie rather than a slasher horror film
There was originally a 3-minute long sex scene with Deborah Voorhees, but the MPAA forced them to cut it to 10 seconds.
Deborah Voorhees said in a recent interview that when she went in for an audition, one of the things that caught the director's eye on her photo was she had the same name as Jason. Nowadays, she doesn't really get recognized, but some people freak out when they see her last name. She tells them Jason Voorhees is her husband and that it's a real bitch getting blood stains out of his laundry.
The film was originally written to have Corey Feldman as the star, reprising the role of Tommy Jarvis, but he was already working on The Goonies (1985), therefore the script was rewritten to have Feldman's appearance limited to a cameo.
Ted White, who played Jason in Friday the 13th: The Final Chapter (1984), stated in interviews that he was offered the opportunity to reprise the role in this sequel and the follow up, but turned it down. White also stated that he regretted that decision.