Auto Trans Won't Shift: How to test your transmission computer, 87-95 Pathy (FSM)

striperdad · Oct 3rd, 2006, 05:31 PM

How do you test shift module and or shift solenoids on a 87 pathfinder 4X4. Won't shift out of 1st gear not even manually.

**88pathoffroad** · Oct 3rd, 2006, 06:28 PM

Here you are, the first link is to the factory service manual's testing procedure and overall parts layout, the second one is a copy of Nissan's factory transmission manual for the RE4R01A automatic transmission. They open with Adobe PDF. Hopefully your Pathfinder has the 4-speed auto, not the 3-speed? The RE4R01A is the 4-speed.

http://nissan.damagedreality.com/NissanTransTests.pdf

http://nissan.damagedreality.com/NissanTransTests2.pdf

striperdad · Oct 3rd, 2006, 07:10 PM

Ihave a 3spd. autotrans. Any suggestions.

**88pathoffroad** · Oct 7th, 2006, 11:41 AM

Those are rare and problematic. They didn't use the 3-speed past 87. Sorry.

mudonmyteeth · Feb 2nd, 2007, 03:56 AM

does it shift manually?

striperdad · Feb 2nd, 2007, 02:44 PM

Quote:

Originally Posted by mudonmyteeth

does it shift manually?

No it didn"t shift manually. Had the tranny rebuilt for 1700. Now I need a Y pipe.

Hillibily · Feb 25th, 2007, 10:47 AM

Quote:

Originally Posted by striperdad

No it didn"t shift manually. Had the tranny rebuilt for 1700. Now I need a Y pipe.

I just picked up an 87 Pathy and am wondering what rpm's is normal at 55mph. The trans completes the first 2 shifts fine but has never made a transfer to the 3 shift. It currently turns about 3500 rpm at 55mph. It does not have the power shif button.

pstephens1 · Feb 28th, 2007, 08:46 PM

Hillibily
Mine is doing the same thing I got underneath to fine that my torque converter solenoid wires were ripped out .....guess it got caught on something while 4 wheeling. I know that the throttle position has lots to do with the shifting usually around 50-55 it shifts to the 3rd shift can you let off the throttle a little to see if it will shift then slowly accelerate?

I am waiting on the part now ....i will let you know if that fixes it

87 Red pathy 206,000

bloodyrav3n · Mar 9th, 2007, 10:42 AM

im having the same problem with my 1995 pathy right now, any word on how you fixed it?

pstephens1 · Mar 9th, 2007, 05:44 PM

i REPLACED THE PART BUT THE WIRE HARNESS WAS MISSING ....I CAN'T FIGURE OUT WHERE THE CONNECTOR WAS? sTRANGE ....I'M WAITING FOR SOMEONE TO SEND ME A PICTURE OF THE ORIGIN SO I CAN SPLICE A NEW ONE ON