The main vacuum lines are just regular 5mm (inside) tubing. You can find them almost anywhere I got mine from lordcoWhere can one find vacuum line to replace the lines in my car? It seems simple enough to do myself, hopefully fix my stupid limp mode problem, and also doesn't seem like it would take too long. I just don't know where to find the vacuum line, what it's called, size, etc. Any help?
First off, some TDIs make that sound and some don't. And most people seem to like that sound and wonder how to replicate it in a TDI that doesn't make it. It really has nothing to do with limp mode.Hi everyone, just want to know do cracked/leaking egr pipes cause noise when shifting (owl noise) and limp mode?
Thank you for reply. My mechanic tested the boost, and he says it's fine. I also have elm327, if that can help.Should not cause limp mode.
I'd take a hard look at all the turbo, intercooler, associated piping and connection clamps.
Do you have a way to monitor boost?
@TornadoRedFirst off, some TDIs make that sound and some don't. And most people seem to like that sound and wonder how to replicate it in a TDI that doesn't make it. It really has nothing to do with limp mode.
Secondly, many things can cause limp mode, but typically either the turbo actuator is sticky or there are one or more leaks in the vacuum hoses. Remember, limp mode is generated by the engine computer to protect the turbo.
I just remembered the name of the sound you described; it's called a "choo." It's more common with the VE engines, but if you have a tandem pump then you must have a PD engine. I've not owned one of those and don't know enough to make any other suggestions.@TornadoRed
Thank you for reply. Do you think is that noise dangerous in any way? Can I drive without thinking about it?
I have tested the turbo actuator before I went to my car mechanic. Also I changed my tandem pump recently.
Vacuum hose from solenoid box to turbo actuator is changed also. And my mechanic says that turbo is dirty but it give good boost (and he said it gives maybe a bit more boost than it should).