Hello,
This is my first time to post on Maxima.org but I have a 96 I30t with 115K miles on it. I was hoping someone can help to troubleshoot my problem with the car since I30 is pretty much the same as a Maxima.
The problem to my car originated last night when I was driving home. After making a small turn at 20mph(I think) and all of a sudden the car seemed to be driving in neutural. The rpm would go up as usual when I depressed the gas padel but the car would not accelerate. So I let the car coasted and stopped it and put it in Park.
I shifted it back to D and it drove fine and I made it home. My question is, what could cause this? Is my auto tranny having problem or some sort of shift modulator is responsible? The tranny fluid was flush when the car had 101K miles on it. Thanks for all the help.

 

Was the fluid ever flushed before the 101k flush?

 

Yes..it was flush at 67K(around there)....

 

Dude the same thing happend to me after passing this guy at about 35mph its like the when the car reaches 3000 rpms its not catching the next gear.Your not alone. As to what it is im stumped 98 auto max

 

Did you take it to a shop and have someone looked at it or troubleshoot it? So far that was my first time to see my car acts like that. How many time does your car do that? or does it do it quite often or just a one time thing?

 

Do this procedure to see if you can diagnose the problem.

The credit goes to ripper7 for this information.

AT diagnostic
__________________________________________________ ________________

95-97
1. Start engine and warm to normal operating temp with O/D off.
2. Turn ignition swith to off postiton wait 5 sec.
3. Turn ignition switch to the ACC position.
4. Put O/D to ON.
5. Move shifter to P, turn ignition on but don't start engine.
6. The OD light should come on for about 2 secs.
a. if light does not come on somthing is wrong with the trans. computer.
b. if light comes on proceed to no 7.
7. Turn ignigton key to off.
8. Turn ignition key to on, don't start engnie.
9. Move shift lever to D, trun ignition to off.
10. Put O/D switch to off position.
11. Turn ignition off.
12. Put O/D to off, turn ignition ON wait 2sec and move shifter to the 2 position.
13. Put O/D to on, move shifter to 1 position.
14. Put O/D to off, depress accelerator all the way to floor and release.
15. The computer is now in output mode and will start displaying the codes.



There?s one long flash that signifies the start of the sequence. Following
should be 10 short flashes. Then it
repeats.
Remember the first long flash indcates the start of the sequence followed by
10.

All 10 flashes the same = No error codes read at this time
1st flash longer than others = Revolution sensor is shorted or disconnected.
2nd flash longer than others = Speed sensor circuit is shorted or disconnected.
3rd flash longer than others = Throttle sensor circuit is shorted or
disconnected.
4th flash longer than others = Shift solenoid ?A? circuit is shorted or
disconnected
5th flash longer than others = Shift solenoid ?B? circuit is shorted or
disconnected
6th flash longer than others = Overrun clutch solenoid circuit is shorted or
disconnected
7th flash longer than others = Lock-up solenoid circuit is shorted or
disconnected
8th flash longer than others = Fluid temperature sensor is disconnected or A/T
control unit power source
circuit is damaged.
9th flash longer than others = Engine revolution signal circuit is shorted or
disconnected
10th flash longer than others = Line pressure solenoid circuit is shorted or
disconnected

All the same with no long start flash = Battery low, been disconnected, or
control unit has just been
reconnected.