I graduated with engineering major but in Industrial Engineering women dominated men by numbers and also in other majors(EE, CE, etc). However, in Mechanical Engineering only 2% of the class is women in 5 years. And it still the same figure nowadays.
One of the professor in that major told us that the course requires more physical skills and strength but the dealings of male students and other program are fine. I'd witnessed both of our female batch mate in that course graduated on time with us.