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2009 Nissan Altima Rough Idle


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Tom64
Novice

Mar 25, 2013, 5:23 PM

Post #1 of 9 (12243 views)
2009 Nissan Altima Rough Idle Sign In

I have a 2009 Nissan Altima 2.5..Just recently it started idling very rough when in drive at low rpm, like when stopped in traffic or at a light. The problem is not there when car is in Park, Neutral, or Reverse.
Is this a sign that the throttle position is going bad ?

Thanks - Tom


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 25, 2013, 6:22 PM

Post #2 of 9 (12198 views)
Re: 2009 Nissan Altima Rough Idle Sign In

No, not really. Is there any check engine light coming on ever?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom64
Novice

Mar 26, 2013, 2:42 AM

Post #3 of 9 (12181 views)
Re: 2009 Nissan Altima Rough Idle Sign In

No - there's no check engine light.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 26, 2013, 4:59 AM

Post #4 of 9 (12166 views)
Re: 2009 Nissan Altima Rough Idle Sign In

Could be an engine mount grounding out.





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Tom64
Novice

Mar 26, 2013, 2:23 PM

Post #5 of 9 (12147 views)
Re: 2009 Nissan Altima Rough Idle Sign In

OK..The "Service Engine Soon" light came on today..


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 26, 2013, 3:31 PM

Post #6 of 9 (12141 views)
Re: 2009 Nissan Altima Rough Idle Sign In

Go get the codes read and post the numbers here.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom64
Novice

Mar 29, 2013, 2:44 PM

Post #7 of 9 (12097 views)
Re: 2009 Nissan Altima Rough Idle Sign In

Had the codes read.."P0744" - "Torque Converter Clutch Circuit Intermittent"

Took it to two diferent places, got the same code both times.

But - I drove the car at least 40 miles today, in heavy traffic - and it ran great, no rough idle, my wife drove it home from work,
and the symptoms are gone..

Any idea's ?? Thanks in advance..


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 29, 2013, 3:02 PM

Post #8 of 9 (12090 views)
Re: 2009 Nissan Altima Rough Idle Sign In

That code has nothing to do with engine operation. It's an overdrive code for the transmission.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Sidom
Veteran / Moderator
Sidom profile image

Mar 30, 2013, 11:42 AM

Post #9 of 9 (12057 views)
Re: 2009 Nissan Altima Rough Idle Sign In

An 09 is still fairly new but depending on the mileage, if it's at or over 100k it might be a good idea to rule out hardened motor mounts as a problem...

Just jack up the engine with a floor jack & block of wood, just enough to get the engine off the mounts, don't pick up the car this way. If the rough idle problem goes away with the engine supported then you have some bad motor mounts....






 
 
 






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