2010 Dodge Charger Rough Idle

Tiny
CHARGERX
  • MEMBER
  • 2010 DODGE CHARGER
  • 3.5L
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 48,000 MILES
I have a 2010 Dodge Charger SXT w/ 48K. When I am sitting at a light there is a slight vibration in the seat. But, it has a rough idle, the car vibrates/shakes once leaving the break until about 900 RPM's. I can leave the break and go straight to the gas pedal, if the RPM's are under 1000, then it shakes. If the car is still, has slight vibration. No check engine light at all. Did replace coil on cylinder 1 as I got engine code 0301. No more codes now. Any help or guidance would help. Possible brake issue, since no check engine light.
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Thursday, May 29th, 2014 AT 3:43 PM

8 Replies

Tiny
HMAC300
  • EXPERT
Try cleaning the throttle plate on both sides and iac hole with choke cleaner
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Thursday, May 29th, 2014 AT 4:13 PM
Tiny
CHARGERX
  • MEMBER
Thank you! I will give this try and let you know. Appreciate the quick reply. I have been battling this for 2 months now. This started after a week of owning it, sadly.
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Thursday, May 29th, 2014 AT 4:54 PM
Tiny
CHARGERX
  • MEMBER
Hello. I had those areas checked and cleaned. The rough idle still occurs. I was told it could be possible carbon build up in engine. I've done seafoam treatments. I will put some in my vacuum line soon. I also got a Diablo sport tuner. Raised my idle up. By 200 making it around 800 idle in Drive. There isn't any shaking, only normal v6 engine vibrations. So. Not sure if the idle was just set too low. There is also a throttle boost. It goes by %. I wasn't sure if that needed to be increased since the idle was increased. Any further help advice would be wonderful and much appreciated. Thanks! !
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Wednesday, June 11th, 2014 AT 5:03 AM
Tiny
HMAC300
  • EXPERT
That is prpobably what it was was to low of an idle. Next time tell someone you hve tuner in it or anything else because we end up not knowing andmay give the wrong info
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Wednesday, June 11th, 2014 AT 6:25 AM
Tiny
CHARGERX
  • MEMBER
Thank you. Well I just did the tune a few days ago. I didn't have it before. Do you suggest raising the throttle boost?
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Wednesday, June 11th, 2014 AT 6:28 AM
Tiny
HMAC300
  • EXPERT
Drive it for a while first and read your instructions on that the company that makes may or may not recommend it. We don't know a lot about those unless we have dealt with them.
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Wednesday, June 11th, 2014 AT 6:52 AM
Tiny
CHARGERX
  • MEMBER
Thank you much!
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Wednesday, June 11th, 2014 AT 7:04 AM
Tiny
CHARGERX
  • MEMBER
Idle has gotten so much worse. It no hesitates, like pressing on a brick wall to accelerate. And it jerks and shakes. Check engine light finally came on with p0301. Cylinder 1 misfire. Already changed coil, must be Fuel injector or piston. Will be visiting dealer today. I have powertrain warranty.
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Wednesday, June 18th, 2014 AT 7:50 AM

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