I'm not sure what you mean exactly by intuition. I see intuition solely as a cognitive faculty and very reliable. For example, you hear footsteps around the corner - you know intuitively that a person is approaching you even without seeing that a person is there, if the sound is familiar you may even guess which person it is (and yet, here I would stop myself for fear of pulling a prank on the wrong person). But, lets try a complex example - I work with machines, I have formed in my mind from experience the ideal way a machine can and should work. Like I have a 3D model of a machine running in my mind. When I approach a machine that doesn't work so well, I intuitively know where to narrow down the problem, how to fix it and which parts to replace.
You must have reliable information for intuition to be reliable. When you don't have reliable information - like investment or with people, intuition becomes a problem because a pattern or a face may appear familiar but non sequitur. Its not the problem with intuition, the problem is the amount of entropy in the given information which makes it almost impossible to predict. Making decisions in unreliable or unknown situations is not intuition, its gambling - its chaos, guesswork, mind overstepping its bounds.
The problem is that no matter the experience(information) intuition throws up a feeling. If there is a lot of experience in that narrow area (like your machines) then it can be accurate. But, when approaching something unknown, it will still create the feeling based on possible very poor information. What is felt feels the same in both instances however and, if one spends a lot of time with the narrow (correct) intuitive feelings, they will likely weigh their intuitive ability more heavily as they have experience in being right. This means that in the unknown areas where the intuition is performing poorly, ther is a risk to overweigh its judgement.