overdrive problem
04-28-2016, 07:35 PM
#1
Junior Member
Thread Starter
Join Date: Oct 2014
Location: austin, texas
Posts: 33
overdrive problem
I have 2002 maxima the transmission does not shift into overdrive under 45mph I flushed the fluid about 2 weeks ago didn't feel a difference has 165000 miles it feels like it it boughs down and lacks power when I first take off it stutters when driving about 40 the Rpms go up about 1000 before I feel it accelorate never delt with a problem like this with any other car I've driven. Any ideas or suggestions about what could be going on would be great.
04-29-2016, 06:39 AM
#2
Proper amount of fluid in? Are you positive it's not going in at that speed? The temp sensor for the tranny needs t read a certain temp (I forget what it is) but if it's not at that temperature, it wont shift into OD. You can definitely feel it when the lock-up torque convertor kicks in.
Not sure if I'd want OD at that particular speed anyhow.
When on the highway say at 60 MPH, leave it in 3rd, and then shift to 4th and see if you get that slight RPM drop and slight shutter when the lock-up kicks in.
Not sure if I'd want OD at that particular speed anyhow.
When on the highway say at 60 MPH, leave it in 3rd, and then shift to 4th and see if you get that slight RPM drop and slight shutter when the lock-up kicks in.
04-29-2016, 07:13 AM
#3
Junior Member
Thread Starter
Join Date: Oct 2014
Location: austin, texas
Posts: 33
Proper amount of fluid in? Are you positive it's not going in at that speed? The temp sensor for the tranny needs t read a certain temp (I forget what it is) but if it's not at that temperature, it wont shift into OD. You can definitely feel it when the lock-up torque convertor kicks in.
Not sure if I'd want OD at that particular speed anyhow.
When on the highway say at 60 MPH, leave it in 3rd, and then shift to 4th and see if you get that slight RPM drop and slight shutter when the lock-up kicks in.
Not sure if I'd want OD at that particular speed anyhow.
When on the highway say at 60 MPH, leave it in 3rd, and then shift to 4th and see if you get that slight RPM drop and slight shutter when the lock-up kicks in.
04-29-2016, 08:10 AM
#4
Conditions for Lock-up Operation
NFAT0015S0301
When vehicle is driven in 3rd or 4th gear position, vehicle speed
and throttle opening are detected. If the detected values fall within
the lock-up zone memorized in the TCM, lock-up is performed.
Selector lever D position 3rd position
Gear position D4 D3
Vehicle speed sensor More than set value
Accelerator pedal position sensor
(Throttle position sensor)
Less than set opening
Closed throttle position switch OFF
A/T fluid temperature sensor More than 40°C (104°F)
NFAT0015S0301
When vehicle is driven in 3rd or 4th gear position, vehicle speed
and throttle opening are detected. If the detected values fall within
the lock-up zone memorized in the TCM, lock-up is performed.
Selector lever D position 3rd position
Gear position D4 D3
Vehicle speed sensor More than set value
Accelerator pedal position sensor
(Throttle position sensor)
Less than set opening
Closed throttle position switch OFF
A/T fluid temperature sensor More than 40°C (104°F)
Or you can try this weird sh^t. I've done it but it's really strange.
AT-53 - 55
http://www.nicoclub.com/FSM/Maxima/2003/at.pdf
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