transmission not shifting right

[texml69]

on my 93 j i put a transmission in it now it seems to hang up when shifting from first to second , its a very hard shift and the rpms will stay at like 2.5k for about 10 seconds then it will shift into 2nd just looking for ideas on where to start

[Infinitiguy19]

Flush the fluid if you haven't recently!

Check the service history and receipts on when the transmission fluid was replaced. If it doesn't show any then save up for a transmission. Check all the electrical sensors using the AT-CHECK.

Seriously get a lot of transmission fluid and drain and refill. Run the car in every gear for 2 min then shut off right away. drain and repeat.

I just did it today and I felt a difference right away!

Then install a Magnefine filter to filter even more out.

Sorry my post would have been more helpful but i am tired as hell.

[goody90q45]

on my 93 j i put a transmission in it now it seems to hang up when shifting from first to second , its a very hard shift and the rpms will stay at like 2.5k for about 10 seconds then it will shift into 2nd just looking for ideas on where to start

When my Q45 had difficulty shifting out of 1st it was a bad turbine revolution sensor. There's a self-test that can be performed with the engine off sitting in the driver's seat. If it brings up any codes you can then perform the ohm test of the bundle of sensors the end of the transmission. See the transmission section of the FSM for the self-check and sensor resistance checks. These are the external sensors that you'll be measuring so replacement is pretty easy.

Paul's advice is sound. Clean transmission fluid is a must to keep it shifting smoothly. Is your fluid red or brown?

http://www.nicoclub.com/FSM/J30/

[yodawill2000]

Good idea to drop the pan after the first drain.
Replace the filer and Oring.
See how much clutch material you clean out of the pan.
Then install new gasket and replace bolts using the proper sequence and torque.

how-to-change-the-a-t-fliud-t489862.html

[texml69]

fliud and filter are brand new put in yester day ill run the code checks and post the results

[texml69]

ok i ran the at light check on it and everything worked up untill after you move it to first and step on gas? no blinks at all

[yodawill2000]

transmission-problems-due-to-neutral-sa ... 51731.html

[texml69]

is this located under the tail shaft with a small plug in on it ? i think i see it when i was changing the transmission

[texml69]

or where is thus part located at ? any body have pic of where it is would be very helpful

[Infinitiguy19]

See the service manual for more info: Nicoclub.com/FSM

[texml69]

well im changing that switch today everbody cross ur fingers thats what it is cause i sure miss driving this old girl

[texml69]

ok i put the new switch in it i can read the transmission codes now but still a hard shift goin into 2nd

any ideas it did not show any codes

[GerryO]

Check and adjust the TPS output voltage to between 4.25 and 4.50 VDC (mine was 4.38 the last time I checked). Save any changes by momentarily disconnecting and reconnecting the TPS connector with the engine running.

Read this material first.

http://home.swipnet.se/e-solutions/IdleTech.html
http://home.swipnet.se/e-solutions/IdleTech2.html

[Infinitiguy19]

Do the above ONLY after the engine is fully warmed up, with ignition on.

[texml69]

GRRRr now the trany seems to be sliping in second but it only seems to do it after u make a turn ? sill no codes but it does do something strange after you put it in first and step on the gas the at light comes on for bout 2 seconds then blinks 11 times is this normal?

[Infinitiguy19]

Are we talking about the AT-CHECK light?

Mike (Goody90Q45) tested the sensors (Revolution, Turbine Revolution, A/T Solenoids and Inhibitor switch harness) He didn't test all of them but you should.

And sometimes you need to lookup all the receipts and service history and see every when it was flushed. If never to once or twice then I am sorry because you might be stuck with THE BILL (new transmission). But no need to worry until you check those sensors with a multimeter as shown in the service manual: Nicoclub.com/FSM

[yodawill2000]

Slipping after a turn sounds like the Fluid is way low.
Starving a transmission is a quick way to fry it !!
Have you checked the level lately ?

[driverdriver]

Slipping after a turn sounds like the Fluid is way low.
Starving a transmission is a quick way to fry it !!
Have you checked the level lately ?

I agree.

[texml69]

well after messing with this thing i finally took it to a transmission shop the guy sold the transmission who swore it was a good transmission and "he drove it himself " has bad bands SO NEVER DO ANY BUSINESS WITH ABC USED PARTS IN COLORADO now i have to pull it again and take it back to fight with about it

[Infinitiguy19]

Well the other thing is that JATCO (Nissan transmission re-builder) give you a 12(month)/12(miles warranty) even though most, close to all transmissions last 7-10 years with proper maintenance. Funny thing is that the half a** repair shop you want to gets paid 2x if not more than the regular worker at JATCO. Most transmission "repair shops" change out the easiest stuff and leave the hard stuff ALL ORIGINAL. Very sad but very true.

[yodawill2000]

FYI .
At least here in Texas , If only 2 components are replaced its considered a rebuild.