Exhaust brake staying open

**JohnLove** · 03-26-2019

2014 Ram 6.7 Cummins. I had the turbo and actuator replaced in November 2018. In January 2019 I did a full delete on the truck and had it tuned with EFI Live. Now the exhaust brake sticks open even when the button on the dash is not on. When the button is on then it sticks even more! I have zero throttle when it does this. Replace the actuator again in February. The truck is doing everything that it is calling for. HELP!!

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**DDP** · 03-26-2019

Originally Posted by JohnLove

2014 Ram 6.7 Cummins. I had the turbo and actuator replaced in November 2018. In January 2019 I did a full delete on the truck and had it tuned with EFI Live. Now the exhaust brake sticks open even when the button on the dash is not on. When the button is on then it sticks even more! I have zero throttle when it does this. Replace the actuator again in February. The truck is doing everything that it is calling for. HELP!!

When you replaced the actuator, did you clean the turbo or have it cleaned? The reason why the actuator normally sticks is due to soot build up.

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**JohnLove** · 03-26-2019

The same shop that replaced the turbo and actuator in November replaced the actuator in February. They changed the actuator because they thought that was the problem. They said that they checked the turbo and it was good. The problem started right after the tune. I had the tuner look at the truck and he even retuned it to make sure that it loaded correctly. He does have it set up to pulsate fuel to help with fuel mileage which he said he can take out of the tune. Why does the exhaust brake even engage when it is off at the dash?

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**DDP** · 03-26-2019

Originally Posted by JohnLove

The same shop that replaced the turbo and actuator in November replaced the actuator in February. They changed the actuator because they thought that was the problem. They said that they checked the turbo and it was good. The problem started right after the tune. I had the tuner look at the truck and he even retuned it to make sure that it loaded correctly. He does have it set up to pulsate fuel to help with fuel mileage which he said he can take out of the tune. Why does the exhaust brake even engage when it is off at the dash?

That should be on your tuner. Most will disable it. Im not a custom tuner so im not sure why he would leave it engaged unless it was indeed to help with fuel mileage.

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