G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

Manumatic Downshifting Issues

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #1  
Old 04-24-2003, 11:52 AM
AWD_G35C's Avatar
Registered User
Thread Starter
Join Date: Feb 2003
Location: Bay Area, CA
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Manumatic Downshifting Issues

Has anyone experienced any abrupt downshifting from 3rd to 1st as you come to a stop on their Coupe's auto trans?
Anybody take it to their dealer and get it resolved yet?

 
  #2  
Old 04-24-2003, 12:33 PM
Cali_Eddie's Avatar
Registered User
Join Date: Apr 2003
Location: Ventura, Southern California USA
Posts: 596
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

You don't really need to move it from 3rd to 1st. The good thing is that it does it automaticly hehehe.. So you only need to focus on shifting up :-)

 
  #3  
Old 04-24-2003, 12:46 PM
John's Avatar
Registered User
Join Date: Jan 2003
Location: Long Beach, CA
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

I've experienced it too.
This is the first auto I've ever owned, so I wasn't sure what to expect.

Everyone said I had to grow up, buy a big SUV to fit kids and, of course, get an automatic so I can take care of the new baby, talk on the cell phone and drink my starbucks all at the same time.
The auto was the only concession I made, but I'm starting to regret it a little.
I feel so disconnected from the car at times. It just doesn't feel like a true sports car to me.

I've found that shifting to 3rd to 2nd as you're approaching a stop helps eliminate the abrupt downshift, but I don't really feel that you should have to do this.

John
5AT coupe

 
  #4  
Old 04-24-2003, 05:49 PM
bigel's Avatar
Registered User
Join Date: Dec 2002
Posts: 460
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

Yeah, that happens to me occasioanlly too, when in manual mode and I am coasting to a stop. I always notice it when I am in 2nd Gear, however. I don't thing I have noticed it when in 3rd. I also have not noticed it when in auto mode.

 
  #5  
Old 04-24-2003, 06:45 PM
AWD_G35C's Avatar
Registered User
Thread Starter
Join Date: Feb 2003
Location: Bay Area, CA
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

I only get the abrupt downshifting from third down to first. It only occurs occasionally either when I downshift from third to second below 25 MPH or occasionally when I brake to a complete stop from third. I agree it doesn't occur in the full auto mode. I called the dealer and they said they never had heard of this issue being reported, and it is of his opinion, that it is just driveline lash and is normal.

So, for now, I'm in a wait and see mode.

 
  #6  
Old 04-25-2003, 03:32 AM
dubi_V35's Avatar
Registered User
Join Date: Feb 2003
Location: los angeles ca
Posts: 158
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

dude i have that happen all the time from second gear. I have been testing it out to see when it occurs .I think it happens most when i come to fast and quick stop.I told the dealer but its hard to make it happen when they are around .It only happens in manual mode to .I drive in manual all the time so it happens allot to me. I got to get it to consistintly happen so i can take it in and show them. Let me know if you guys hear anything.

www.derubeisfineart.com
 
  #7  
Old 04-25-2003, 10:25 AM
Ggirl's Avatar
Registered User
Join Date: Mar 2003
Location: Florida
Posts: 403
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

It happened to me once and I freaked out, so now I just let the car shift down by itself, I take care of the upshifting alone.

G35C Desert Platinum/Willow Leather 5AT Aero Pack Premium Pack
 
  #8  
Old 04-25-2003, 05:06 PM
Btrain's Avatar
Registered User
Join Date: Oct 2002
Location: Raleigh, NC.
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

This happens to me a lot also.

 
  #9  
Old 04-26-2003, 01:03 PM
opusxcigars's Avatar
Registered User
Join Date: Dec 2002
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

I get this too. In manumatic when coasting to a stop below 10mph the transmission abruptly downshifts by itself into 1st. I feel a slight "clunk" and buck from the car. Only happens occasionally not all the time. In full AT mode it's smooth as silk and doesn't happen at all.

 
  #10  
Old 04-26-2003, 01:15 PM
RamboRami's Avatar
G35driver.com Moderator
Join Date: Nov 2002
Location: Mishigan
Posts: 3,476
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

i think you guys should report this to your dealership or to infiniti, it might be some small glitch in the ecu shift timing..... probably an easy fix, but you should report it so that infiniti knows.
It will be an easy fix of reprogramming your ECU once a new version comes out (will only take a few minutes to reprogram)


<font color=green>-Ramb0</font color=green>
 
  #11  
Old 04-26-2003, 02:31 PM
Carlos3186's Avatar
Registered User
Join Date: Jan 2003
Location: Cleveland, Ohio
Posts: 1,757
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

you should not shift into frist gear while your moving unless u are racing or somthing. Shift down till 2nd then wait til you are around 2 rpms then shift down or let the car do it. the way the gears are set up it will send the rpms up to high there for u will feel that shaking or jerk. Its best to downshift with breaking that a way you can control the RPMs better.
Good luck

 
  #12  
Old 04-26-2003, 03:08 PM
bigel's Avatar
Registered User
Join Date: Dec 2002
Posts: 460
Likes: 0
Received 0 Likes on 0 Posts
Re: Manumatic Downshifting Issues

The jerking everyone is talking about is when the car shifts itself from 2-1. Its nothing the driver is doing. I agree, its a programming problem and I hope Infiniti wants to fix it.

 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
madmax032
Drivetrain
8
01-18-2016 10:41 AM
cmesidewayz
Care & Detailing
1
09-29-2015 09:28 PM
kevintandmd
G35 Sedan V35 2003-06
2
09-03-2015 06:41 PM
UT G35
General Tech Questions
6
09-03-2015 03:58 PM
FRUG35
Engine, Drivetrain & Forced-Induction
0
08-31-2015 02:33 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Manumatic Downshifting Issues



All times are GMT -4. The time now is 02:25 PM.