Join Date: Jun 2009
Location: Kearns, Utah
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I was wondering if any other '09 R/T owners have noticed this or not (or even other years for that matter). Sometimes while stopped at idle, the RPMs will surge and the car moves forward slightly, like you're pressing on the throttle and brake at the same time.
The car doesn't really move forward, but it is annoying when pulling into a parking stall or when stopped at a red light. I checked the list of TSB's out for '09 and haven't seen anything related to this yet.
This is simply an educated guess, but the 09s and up use Deceleration Fuel Cutoff. It is basically where the engine has deceleration fuel shut off and camshaft controlled charge trapping. It is designed to save fuel and also reduce NOx during deceleration and idle. It can only be used in an engine that has variable valve timing and electronic throttle control.
This is the case with the 09 and later Chargers.
It could at least be a clue here.
BND Automotive LLC
Yeah, I've noticed this happening with my '09 R/T as well. It doesn't happen very often, and it seems to be totally random, but it's kind of unsettling. Makes you feel like you need to step on the brake pedal harder to keep the car from moving forward. Almost like you're trying to do a brakestand.
I have an 09 RT and haven't noticed anything...if I do I'll be sure to post here.
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