2002 5.9 engine speed spikes up intermitently with NO code

Asked by Dec 25, 2015 at 11:19 AM about the 2002 Dodge Ram 2500 4 Dr ST Quad Cab LB

Question type: Maintenance & Repair

only notice at low rpm and at times during idle

1 Answer

10,120

check for vacuum leaks and clean your idle air control valve. also, wouldn't hurt to clean the throttle body with some spray cleaner.

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