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Thread: Exhaust brake engaging but not slowing truck Reply to Thread
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  Topic Review (Newest First)
09-16-2019 01:09 AM
The Punisher 7 That’s what I narrowed it down to. Just went ahead and ordered a 2nd gen swap.
09-16-2019 12:59 AM
Bkteater1
Quote:
Originally Posted by K9Kodi View Post
I believe that is an actuator failure
I would agree with him. Just a thought, plug up the EZ and datalog the turbo vane position A and D to confirm the actuator is not doing what its told to do. if the actuator values are similar you may have other issues as the computer is commanding an improper actuator position. I just replaced an actuator myself.
09-13-2019 02:22 PM
K9Kodi I believe that is an actuator failure
09-13-2019 10:30 AM
The Punisher 7 Ok sorry I left you guys hanging, I’ve been very busy the past few days but it got to the point where sometimes I would get in the truck and the EB would work flawlessly and others it would be back to what it was before but today as I was coming down a hill, exhaust brake working just fine, as I got to the bottom of the hill and went to roll on the throttle the truck fell on its face and started blowing black smoke out the exhaust. The exhaust brake continued to run as I was giving it throttle and is basically stuck on now. I tried to turn it off on the dash and it still won’t turn off.
09-03-2019 11:31 PM
K9Kodi
Quote:
Originally Posted by N of 60 View Post
VANES. Vanes stay put. The collar slides.
Hahaha and I’m the one always correcting my buddies. You did get me and I didn’t even think about it, and yes I explained it poorly,
09-03-2019 11:13 PM
Aburdett
Quote:
Originally Posted by The Punisher 7 View Post
Iíll look into the tubing tomorrow 60, thanks. And Kodi thatís exactly what Iím noticing. I can hear the sound but itís not actually functioning correctly. It almost seems sometimes that itís trying to build the back pressure to slow the truck but canít quite get enough but most of the time itís just the whistle and no actual effort to slow the truck.


Does your cluster not show the back pressure? I know mine will. Can you see what it says?
09-03-2019 11:07 PM
The Punisher 7 I’ll look into the tubing tomorrow 60, thanks. And Kodi that’s exactly what I’m noticing. I can hear the sound but it’s not actually functioning correctly. It almost seems sometimes that it’s trying to build the back pressure to slow the truck but can’t quite get enough but most of the time it’s just the whistle and no actual effort to slow the truck.
09-03-2019 10:44 PM
N of 60 VANES. Vanes stay put. The collar slides.
09-03-2019 10:24 PM
K9Kodi I gotta be honest. I don’t really understand your question, if the exhaust brake is in-fact engaging, as in you hear it, it means the veins are being manipulated. The veins changing position is what creates the pressure to slow you down, so either you push the button and think it’s engaging due to the dummy light when in actuality it isn’t or they are changing position enough to create a noise change but not enough to reduce speed like you are used to. When my actuator failed it sounded like it was on even when I was trying to accelerate, produced almost no boost. EIther way, if it’s not something in the tunes it sounds like a possible actuator issue?????
09-03-2019 09:44 PM
Jhenderson I does appear that way. So much for my answer.
09-03-2019 08:56 PM
N of 60 He has a 6-speed manual from what I can tell. I would be checking the quarter inch back pressure sensor line/tubing from the manifold to the sensor if he is still using it as a reference with his tuning.
09-03-2019 08:44 PM
Jhenderson The exhaust brake canít slow your truck unless the torque converter is locked.
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