A bit of background. My daughter has a 1998 Bravada. A few days ago, on the way to work, it started missing badly and is basically undrivable. It also threw a P0300 code (multiple misfires).
I have changed the rotor, cap, plugs and HT leads with no effect. I'm also going to change the O2 sensors when I get back from traveling for work next week.
When I was checking things out I have discovered a tube that has deteriorated badly and has broken. Here are a couple of pictures:
The first is of the perished tube itself. It is running left to right and is to the right and below the white connector. It goes into the the left fender.
The second shows the other end of the tube. I'm not sure what it goes into (PCV?) but whatever it is also has a breather from the valve cover.
Can anyone tell me what this tube is/does, and could it be the reason for the engine issue?