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cxu regen

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2008 cxu overheats and shuts down during parked regen. Wasn't there when it happened so not sure if engine fan was running. I do know in the summer time while sitting still the engine fan won't run while a/c is on sitting still which makes a/c blow warm air. Once you start driving and moving air through front end it's fine. Didn't know if this fan issue could be the culprit for both problems. Thanks

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It sounds like you have a HDMS electronic fandrive, I have seen overheating during parked regens and its almost always a fandrive problem. the easiest way to test the fandrive is to disconnect the connector and run the engine over 1200 rpm it should lock-in and run at 100%, you will be able to hear it . If it doesnt lock-in the fan drive needs to be replaced.

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