My exhaust brake goes off every once in a while on its own even when not turned on. Is anyone else having this same issue?
I thought that mine was doing the same thing, and took it to the dealership and they told me that it was the EGR, not the exhaust brake, but it still sounds like the ex-brake to me!!
Yes, its the egr.Mine does it too. It sounds exactly like the Exhaust brake. ARE YOU SURE it's the EGR?
Guess you learn something new every day huh? I listened for it to happen again today. When it did, it didn't seem as strong as the E-brake but it still seemed to slow the truck down a little. Maybe i'm just imagining it though.:thumbsupFirst of all let me say that I have no exhaust brake (early c&c).
During regen when you come to a stop you will hear what sounds like your e brake turning on, when you accelerate you can hear it turn off. It's your turbo helping the egr circulate through the intake at low rpm's during regen. Your dpf will stop cleaning in park, when you put it in park it will idle rough due to the egr/vgt pausing the regen process. If you have the dpf removed your egr/vgt will still do this, as some have experienced unusual power bursts. Vgt's do not know the dpf is gone therefore soft codes during scheduled regens.
If you remove your egr it may take some load, and heat off the turbo. All we have to do is to communicate with the vgt... and code free :thumbsup