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Old 11-27-2019, 06:15 PM   #15
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Just a thought. Maybe the crankcase pressure sensor malfunctions when you apply the exhaust brake? Regardless, changing the sensor would be my next step.
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Old 11-27-2019, 09:03 PM   #16
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I am wondering if increased crankcase pressure when using the exhaust brake would be a symptom of one or more leaking exhaust valve seals. The fact that stage one does not cause a pressure alarm, but stage two does because it creates more back pressure in the exhaust manifold would suggest a leaking seal.
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Old 09-26-2022, 10:21 AM   #17
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Originally Posted by Barryc737 View Post
Thanks, Ben. Appreciate the interval mileage number. We'll keep you posted.
I know this is an old post, but were you ever able to fix the problem? Mine does exactly the same thing too, only a problem when I'm towing and use the engine brake. If I'm not towing a toad I can use the engine brake and it hasn't happened (so far). But it's definitely engine brake related for me as well.
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