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05 Altima transmission questions Forums > > 05 Altima transmission questions 05 Altima transmission questions
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  #1  
Old 12-27-2014, 08:26 PM
Soapmyster Soapmyster is offline
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2005 Altima
2005 Altima
 
Join Date: Oct 2012
Location: Oriskany
Posts: 180
Default 05 Altima transmission questions

Hi all.
Happy holidays.
I think something is going on with our 05 altima. The fuel economy has not been very good(not to me anyway)
Has mainly highway miles rather than city.
2.5 L4 automatic. gets about 250 miles to a tank.
Owners manual says it has a 20 gallon tank but it never takes anymore than about 14.5 gallons with gauge about E.
Anyway I am thinking there might be something wrong with the transmission.
It feels like it is hanging in gear at higher speeds.
I will be honest I am used to v8s and larger cars, so I understand that smaller engines idle higher, but it seems to idle higher than it should when driving.
To give an example
at operating temp 55mph idle is about 2200rpm
at operating temp 70mph idle is about 2800rpm.
I find that if it seems to be hanging in gear it will shift if I briefly let off the throttle and ease back into it it stays lower.
I am wondering if the torque converter is having issues.
No codes are present. I do notice that I hear a vibration sometimes in gear at idle.
Car runs beautiful and has good power, but the mileage surprises me.
My 3800lb v8 cadillac gets about 500-550 miles per 20 gallons. driven same way.
Maybe someone can give me an idea if I am starting to have issues that may make my nissan unsafe to travel. I dont want to take a trip and find out the hard way.
Thanks all. I have tried to be as specific as I could.
Hope everyones holidays are merry and we all have a good new year
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  #2  
Old 12-29-2014, 08:58 AM
G47
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you can do a drain and fill on the transmission fluid and see how that helps.
Redline makes great fluid for regular ATF.
it takes about 4 quarts of fluid for drain and fill
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  #3  
Old 12-29-2014, 01:06 PM
Soapmyster Soapmyster is offline
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2005 Altima
2005 Altima
 
Join Date: Oct 2012
Location: Oriskany
Posts: 180
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we did that. We used Genuine nissan fluid. around 5.0 quarts IIRC. I dont remember exactly. Wish there was a filter I could change
Thank you very much for your post.
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  #4  
Old 01-08-2015, 07:50 PM
Soapmyster Soapmyster is offline
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2005 Altima
2005 Altima
 
Join Date: Oct 2012
Location: Oriskany
Posts: 180
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can anyone give me an idea on these RPMs as to whether they are high for the load.
If the torque convertor was bad should it throw a code and the check engine light?
It feels and sound like the engine is racing when you are on the highway. Good power but acts like it is in lower gear when it doesn't need to be.
I have counted 3 shifts so I a pretty sure it is going into 4th gear ok.
I may have to take it to a trans shop but am afraid of what I might get. I also want to be sure the problem is the trans and not something else
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