hard shift from 1st to 2nd - Nissan Forums : Nissan Forum
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#1 Old 11-24-2003, 07:54 AM
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hard shift from 1st to 2nd

i was just wondering what i could do to fix this hard shift, or what could be causing it. I have 42k miles on the 2001, and i had the tranny fluid drained at 33k miles. just wondering whats up with it.
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#2 Old 12-07-2003, 05:00 AM
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is it 5sp or auto

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#3 Old 12-07-2003, 05:03 AM
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i am assuming automatic. see they 'drained' your fluid but did they actually take off the transmission pan and clean the magnets in it? I would drain and refill the transmission fluid again if i were you. also when i flushed out my radiator and cleaned it and then refilled it, i noticed that the car ran smoother and shifted slightly smoother.

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#4 Old 12-07-2003, 07:42 AM
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Wrong grade of fluid, tarnish in th VB. Just a few things that come to mind.


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#5 Old 12-07-2003, 06:42 PM
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Well since it's shifting at all right now I assume they refilled your tranny fluid when they were done

That hard shift seems to be all too common on our cars. I've got it too. I hope to be switching to manual sometime in the near future tho, so screw it.
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#6 Old 12-07-2003, 08:15 PM
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Mine shifts hard from 1st to 2nd in the morning but after a while it gets better. Is that normal?
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#7 Old 12-07-2003, 08:31 PM
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mine does the same. It did it so bad it would eat up tranny mounts like in a month. So i switched to the polly mounts and it helped a little but i think it has to do with the VB being dirty or needing to be cleaned.

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#8 Old 12-07-2003, 08:43 PM
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mine shifts like a skinny man in butter...

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#9 Old 12-07-2003, 08:56 PM
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mine ran in only 2nd gear today. i thought it was blown. shut it off for an hour, then it worked fine????? i hate autos.



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#10 Old 12-07-2003, 10:24 PM
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My car has a hard shift from 1st to 2nd
and all the cars that I was testdriving had the same problem like 5 of them
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#11 Old 12-08-2003, 01:18 AM
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Check the dropping resistor - on my first gen it is mounted on the front of the driver-side strut tower by the intake. If it is unplugged, or burnt out, you will have violently hard 1-2 shifts.

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#12 Old 12-08-2003, 01:30 AM
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what does this dropping resistor look like? what does it plug into? thanks.
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#13 Old 12-08-2003, 01:44 AM
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Quote:
Originally posted by altimategroundpound
what does this dropping resistor look like? what does it plug into? thanks.
Well its silver and about 3" long, slim rectangular thing. It goes somewhere in the circuit between the control computer for the trans. - if you have a Haynes, it is on 12-24.
The topic of disconnecting the resistor on purpose, or replacing it with a potentiometer, for "performance" shifts came up a couple of years ago. A guy on the Maximas site wired a toggle switch inline, if I recall.
Apparently the hardness of the shift is inversly proportional to the amount of current passing thru that circuit. Breaking the circuit, of course, makes the voltage go to zero. It supposedly has some relationship with the control of the line pressure solenoid valve. Low voltage, and your hydraulic pressure in the trans goes high.

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#14 Old 12-08-2003, 05:46 AM
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Nissan also had a TSB on hard shifting automatic Altimas. Only some altimas qualified for updated parts. Sadly mine didnt fall under this Customer Satifaction Campaign.


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#15 Old 12-08-2003, 02:48 PM
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I've got a hard 1-2 shift as well. It sure doesn't slip in there....feels almost like it grinds. Once the car is heated up it's fine. Maybe I should change the trans fluid to syn.

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