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

5AT weird sound normal? Shift lag...

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Old Sep 17, 2008 | 04:17 PM
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Richard Su's Avatar
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Unhappy 5AT weird sound normal? Shift lag...

Hi all,
I am a recent new owner of 03 5AT G coupe with 50k miles and was wondering if you guys experience this: in the morning when I first start the car, there is a slight gearing sound when the car first shift from 1st to 2nd. It does not happen anymore after the car gets warm, or after I restart it after parking for a few hours or so. It sounds like metal rubbing against metal for about 1 sec, and is not that loud at all but loud enough to hear it every morning. Is this considered normal?
Also I've noticed that sportshifting in the G is more sluggish than a Acura CL that I drive as a daily driver...it feels as though it takes twice longer to wait for the car to downshift, and it doesnt like to shift 2 gears at once. For example, I can down tap the sportshift consecutively twice in the CL and it will go to 3rd then 2nd by itself, but in the G I have to wait till it gets to 3rd then down tap again to get it to 2nd. If I down tap twice it will only downshift by 1 gear etc. Is this a sign of tranny turning bad? gosh....

Also I am just wondering why nissan made its sportshift unable to go to 2nd after redlining...unlike Audis, Lexus, Acuras etc. I've never tried a M3 so I dunno if it will go to 2nd after redlining..........
 
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Old Sep 17, 2008 | 04:21 PM
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most likely you are hearing the ABS self test sound which happens each time you start the car. It seems to be louder when the car is colder.
 
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Old Sep 17, 2008 | 04:30 PM
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really...I never know that...thanks..
it does ABS test when it first shift from 1st to 2nd?..hmmm interesting~ when i switch into reverse gear I dont get that sound tho for some reason...
 
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Old Sep 17, 2008 | 04:38 PM
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From: Schaumburg, IL
Originally Posted by Richard Su
really...I never know that...thanks..
it does ABS test when it first shift from 1st to 2nd?..hmmm interesting~ when i switch into reverse gear I dont get that sound tho for some reason...
the sound is audiable when you first start accelerating to about 5-10 MPH usually when in 1st gear.
 
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Old Sep 17, 2008 | 05:03 PM
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Known issue for 5AT's everybody knows about it but it's not harmful as I believe. However, once I got my grouding kit I don't hear it anymore. I think it has more to do with shifting and with the kit it makes the tranny shift smoother.
 
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Old Sep 17, 2008 | 08:10 PM
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the computer memorized how the previous owner drove the car.

i reset the ECU (search for threads), then drove it somewhat aggressively.
it definitely will reduce the lag.
 
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Old Sep 17, 2008 | 10:08 PM
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WOOO...REALLY...
i will definitely look into that to reduce the lag
thanks!
 
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Old Sep 17, 2008 | 10:20 PM
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OMG IS THAT WAT IT IS< THANK GOD jsut eh ABS i hear that noise too sometimes !
 
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Old Sep 17, 2008 | 11:57 PM
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I have the ABS sound too, and I was wicked worried at first when I heard it. It was cleared up by some friendly members here on my thread a while ago as well.

In the mornings, just before shifting to 2nd gear, I hear the metallic sound from the front, kind of like a spring unload or something of that sort.

As for the slow downshift, I think it started in 2005, since the AT now does Rev-matching, and that takes time.

Correct me if I am wrong.

Ben
 
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