Engine, Drivetrain & Forced-Induction
Have Technical Questions or Done Modifications to the G37? Find out the answer in here!

Transmission problem

Thread Tools
 
Search this Thread
 
Old 01-07-2013, 11:04 AM
  #1  
SteveinKent
Registered User
Thread Starter
 
SteveinKent's Avatar
 
Join Date: Mar 2012
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Transmission problem

I have a 2009 sedan and have had considerable trouble with the automatic transmission. The problem seems to be tied to 4th gear. When the transmission needs to downshift to 4th, it is sometimes reluctant to do so, stays in 5th gear too long, finally downshifts to 3rd gear and rpm jumps too high. The transmission then hunts for the right gear. This problem sometimes knocks the car in to safe mode. I brought it to Infiniti at 50k miles, only to be told they could find nothing wrong. I brought it to a different dealer at 68k miles and they flashed a new engine control program and I will say the transmission shifting was smoother for a while. Then it did it 3 more times, each time knocking the car in to safe mode, and I returned it to the second dealer. They took it for a test ride, confirmed the problem (it went in to safe mode on them) and said I probably need a new transmission but since the car now has 72k miles on it, the new transmission is on me. Needless to say, I'm in touch with the Attorney General. In the mean time, I have spoken with a transmission expert who tells me it is unlikely I need an entire transmission. He suggested replacing the 2/4 shift solenoid as a start.

Has anyone else had a similar experience with their transmission and how did you correct the problem?

Thanks in advance,

Steve Brown
Old 01-07-2013, 08:52 PM
  #2  
RISKY GUY
Registered User
iTrader: (9)
 
RISKY GUY's Avatar
 
Join Date: Jun 2009
Posts: 2,078
Received 43 Likes on 31 Posts
Hate to say it, as far I know the solenoid is inside the trans.
Very expensive on labor to open it up. Last I knew the unit is a disposable piece meaning non repairable. I mean you could have work done its gonna be ridiculous.
My auto had 52k on it when it started to slip bang mid shift etc.
I personally got rid of mine when the trans started to act up.
Tranny for this car is obscene, I ended up buying a new car rather than even try to fix.
My car was also hit 2x, good luck with the repair.
If you do any work on the trans itself I'd go with a transgo kit.
Again good luck.
Old 01-07-2013, 09:12 PM
  #3  
LexiG37
Registered User
 
LexiG37's Avatar
 
Join Date: Jun 2011
Posts: 317
Received 14 Likes on 14 Posts
You reported the problem well before the warranty ran out. It's well documented. It's just that the techs couldn't reproduce the symptoms. That's not your fault, and they should cover the new trans. It's interesting that they finally told you that you need a new trans just after the warranty ran out...
How typical of the thieves.
Good luck.

p.s. If Infiniti can't make a reliable trans then I'm going with Lexus. No brand loyalty here.

Last edited by LexiG37; 01-07-2013 at 09:19 PM.
Old 01-07-2013, 10:17 PM
  #4  
monty2003
Registered Member
 
monty2003's Avatar
 
Join Date: Sep 2012
Posts: 142
Received 9 Likes on 9 Posts
Dont bother with the attorney general. Call infinity consumer affairs and open a case. Don't bother with their online forum - it will take them forever to get back to you. Call and talk to someone.

Infiniti Consumer Affairs
P.O. Box 685003
Franklin, TN 37068-5003
Phone: 800-662-6200

Monday through Friday:
7:00 AM to 7:00 PM, Central Time

Saturday:
8:00 AM to 5:00 PM, Central Time
Old 01-07-2013, 10:22 PM
  #5  
RISKY GUY
Registered User
iTrader: (9)
 
RISKY GUY's Avatar
 
Join Date: Jun 2009
Posts: 2,078
Received 43 Likes on 31 Posts
If your close to warranty expiring, they usually do make a good faith attempt at honoring warranty.
Back in the day, I had a 96 j 30t with 62k on the odo.
Trans went bad & Infiniti replaced for free.
Try another dealership before you drop the $.
Ask any of your friends. I'd even try bribe the service manager.
I didn't realize you we're just out of warranty.
That's just my .02, hopefully you get your car fixed for a fair price.
Old 01-07-2013, 11:28 PM
  #6  
MACS
Registered User
iTrader: (3)
 
MACS's Avatar
 
Join Date: Mar 2005
Location: SoCal (Shawn)
Posts: 1,270
Received 24 Likes on 18 Posts
Originally Posted by monty2003
Dont bother with the attorney general. Call infinity consumer affairs and open a case. Don't bother with their online forum - it will take them forever to get back to you. Call and talk to someone.

Infiniti Consumer Affairs
P.O. Box 685003
Franklin, TN 37068-5003
Phone: 800-662-6200

Monday through Friday:
7:00 AM to 7:00 PM, Central Time

Saturday:
8:00 AM to 5:00 PM, Central Time
THIS! I called them to complain about my wheel bearings going bad at 78k miles on my '04G and they gave me an Infiniti credit for the cost of the repair. It can't hurt to ask.
Old 01-08-2013, 09:04 PM
  #7  
okrim
Registered User
 
okrim's Avatar
 
Join Date: Jan 2012
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
i had the reprogram done on my 2009g37x last november, car ran great afterwards for a couple months, latley i have been noticing my fuel economy is getting worse and the car in d mode does not seem to shifting into 6th gear, it will shift manually but not in d mode, anybody experienced this?
Old 01-09-2013, 12:20 AM
  #8  
RISKY GUY
Registered User
iTrader: (9)
 
RISKY GUY's Avatar
 
Join Date: Jun 2009
Posts: 2,078
Received 43 Likes on 31 Posts
Bad shifter module.
Had to have the entire shifter replaced under warranty.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4DRZ
Drivetrain
34
08-05-2021 10:02 AM
Msherburneg37xs
Intake and Exhaust
2
09-30-2015 06:39 PM
r0cketm0nkey
Engine, Drivetrain & Forced-Induction
4
09-27-2015 01:34 PM
ZachThomas
Newbie Corner
2
09-03-2015 01:40 PM



Quick Reply: Transmission problem



All times are GMT -4. The time now is 04:36 AM.