Hissing sound and I'm confused....
So I've got an 1986 4 Banger Ranger and it has a hissing noise that is constantly coming from somewhere, if you want to know what this sounds like just press your brakes in and listen while the pedal comes back out.
That is where the noise is coming from but I don't know what to do about it, If I press the pedal down all the way the noise stops but my engine almost dies so I'm thinking it's some sort of vacuum problem but I don't know where to look.
The sound is always there if I don't have the brakes pressed all the way and its starting to annoy me more than anything. If you know of anything that could help me I would greatly appreciate it.