Acceleration issue with 07 G35X
#1
Acceleration issue with 07 G35X
Hello all,
This is the best G forum on the internet right here!
So let me relate my experience with you, and see what you think. I live in Colorado which is 1 mile above sea level (darn engine loses 20% HP at this altitude!). I first test drove an 07 G35X and noticed that under a full throttle launch, the engine completely scaled back when going from first to second, and the VDC light lit up (as if the tires were slipping but they weren't).
Even the dealer said this was unusual. Then I bought mine, and noticed the same behavior repeating itself...this occurs in both D and DS modes. Pulls hard to redline, then the engine cutoff for a full second, then on into second and back on the steam.
My friend buys a G35X, and guess what? Same symptom...when I switch off the VDC, the problem goes away
The service manager at the dealership said he notices this and assumes there will be a TSB in a few months...
Does anyone else here notice this? I can verify there is NO wheel slippage...I mentioned the altitude here in Colorado because I am wondering if this is a factor in the transmission sensors, which I understand detect internal pressure among other things?
Oh, and I should mention I waited until about 800 miles were put on before subjecting my car to these experiments.
This is the best G forum on the internet right here!
So let me relate my experience with you, and see what you think. I live in Colorado which is 1 mile above sea level (darn engine loses 20% HP at this altitude!). I first test drove an 07 G35X and noticed that under a full throttle launch, the engine completely scaled back when going from first to second, and the VDC light lit up (as if the tires were slipping but they weren't).
Even the dealer said this was unusual. Then I bought mine, and noticed the same behavior repeating itself...this occurs in both D and DS modes. Pulls hard to redline, then the engine cutoff for a full second, then on into second and back on the steam.
My friend buys a G35X, and guess what? Same symptom...when I switch off the VDC, the problem goes away
The service manager at the dealership said he notices this and assumes there will be a TSB in a few months...
Does anyone else here notice this? I can verify there is NO wheel slippage...I mentioned the altitude here in Colorado because I am wondering if this is a factor in the transmission sensors, which I understand detect internal pressure among other things?
Oh, and I should mention I waited until about 800 miles were put on before subjecting my car to these experiments.
#2
I also live in Colorado, and I noticed this same behavior on the first G35x that I drove at the dealer. While waiting to receive my car, I had an 07 X demo for about 3 weeks, but I didn't notice it on this car. I just passed 1000 miles on my G35x -- so I haven't driven it too hard -- but I haven't noticed the behavior on my car.
#3
Originally Posted by QuoVadimus
I also live in Colorado, and I noticed this same behavior on the first G35x that I drove at the dealer. While waiting to receive my car, I had an 07 X demo for about 3 weeks, but I didn't notice it on this car. I just passed 1000 miles on my G35x -- so I haven't driven it too hard -- but I haven't noticed the behavior on my car.
Interesting! I'm 3 for 3 with my experiences but you have clearly driven a car that does not suffer from this anomoly.
I'll be anxious for more users' input on this subject...
#4
My car does none of what you guys are talking about,, I have drag raced mine at 2 diff. tracks, and it shifted perfectly! right to redline and right into 2nd, 3rd, and so on. No hiccups, no pauses, or nothin,, I have just over 4000 miles on it. also when racing it i just left it in Drive, IMO, if the body's of these cars were as sound, and as good as the drivetrain, these sedans would really be something!!!! but i have had a few rattles that i am trying to track down,, also dealer really messed up the paint that i didn't notice when delivered.... also, the way some problems come and go on there own,, maybe these will do the same... regards...
#6
Originally Posted by Ripmaster
Interesting! I'm 3 for 3 with my experiences but you have clearly driven a car that does not suffer from this anomoly.
I'll be anxious for more users' input on this subject...
I'll be anxious for more users' input on this subject...
Last edited by QuoVadimus; 08-31-2007 at 12:40 AM.
#7
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#9
It's happened to me once. It was an acceleration lane with a slight curve & uphill to it. Seemed to me I indeed got a bit of wheel slip or at least a diff in the rotation. I chalked it up to the slope & curve, but have not been able to replicate. All other "launches" have been fine at I am at about 2300 miles.
Jesse
Jesse
#10
If i get on my car hard, I can get wheel sleep, and the AWD and VDC will kick in, (you will see the slip light flash or vdc light, whatever it is). The fact that it doesn't do it when using VDC means that it is part of the stability control or AWD that is doing it, so I wouldn't be too worried about it.
If you want it to stop, you could try getting better tires. The all seasons on the X kind of suck for performance runs like that.
If you want it to stop, you could try getting better tires. The all seasons on the X kind of suck for performance runs like that.
#11
#12
#13
Hey Tommy303,
The service manager at Infiniti of Denver said it was definitely NOT normal and said to look for a TSB fix in a few months...
I do the same when I want to get on it; I put it in DS mode and turn off VDC...but when I'm just driving around and then suddenly need to pass someone, sometimes I don't have time to go through all that and it just sux when it happens!
Oh, and this heppens in a completely straight line, no corners or wet roads or anything else involved...there is NO wheel slippage occurring...
The service manager at Infiniti of Denver said it was definitely NOT normal and said to look for a TSB fix in a few months...
I do the same when I want to get on it; I put it in DS mode and turn off VDC...but when I'm just driving around and then suddenly need to pass someone, sometimes I don't have time to go through all that and it just sux when it happens!
Oh, and this heppens in a completely straight line, no corners or wet roads or anything else involved...there is NO wheel slippage occurring...
Last edited by Ripmaster; 09-01-2007 at 08:15 PM. Reason: adding a comment
#14
#15