Isx15 2250 engine brake issue
05-21-2026, (Subject: Isx15 2250 engine brake issue ) 
Post: #1
Isx15 2250 engine brake issue
Has anyone had this problem with engine brake?
So, when the engine oil is cool (up to 170F-200F) 3rd stage works perfectly but when it gets hot (220F-230F) the engine brake gets very weak and the engine starts vibrating. Using Rotella 15-40
Changed both solenoids but didn't help.
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Messages In This Thread
Isx15 2250 engine brake issue - Samvelm83 - 05-21-2026



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