OKBrian

I have a 1990 xj 4x4 with a 4.0L, AW4. My AW4 is slipping when shifting from 1st to 2nd. I found an AW4 out of 1995 xj. Would this AW4 be compatible (plug & play)?

Diesel

Yes.

But mind you the AW4 is always a little slow out of 1st gear

freegdr

one thing to check out would be the sensors on trans 90 is renx the other is odb ecm systems?

freegdr

have you tried adjusting the kick down cable

OKBrian

I followed the kickdwn adjustment procedure. I did the procedure correctly but the gray halfmoon button was very difficult to press and hold through the procedure. The gray button didn't press in very far.

OKBrian

Diesel,

I didn't know that but it revs very hi before it shifts and sometimes I have to let off the gas and back on it to get it to shift.

freegdr

did the cable adjustment move in and out by hand when youy tried

OKBrian

if it moved it wasn't much

freegdr

when you push the button down you should be able to slide the housing in and out prettyv easy maybe theres crap in the button mechanism

OKBrian

I'll try again to re-adjust the kickdwn like you said there may be some trash in the button mech.

freegdr

http://www.allpar.com/SUVs/jeep/cher...nsmission.html

OKBrian

Press the button and followed the procedure this time the cable mech. moved considerably. I will be taking it on some test drives in a bit to see if that corrected the problem. Not sure why the kickdwn adjustment would have anything to do with it not shift from 1st to 2nd though?

freegdr

it controls shift pressure according to throtle pressure

OKBrian

Took it out and got it up to normal temp. this seems to have made a vast improvement. I will continue to monitor. Thanks for all your help!