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captron33's avatar
captron33
Explorer
Jul 16, 2022

Exhaust brake not working

Cummins 400 isl 2006 travel supreme. About 90,000 miles. Need some help! Thanks
Class A
wolfe10's avatar
wolfe10
Explorer
Jul 18, 2022
Did you verify that the throttle position sensor IS communicating that the throttle is closed???

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