kj139
NAXJA Forum User
- Location
- Yuba City, California
I know, I know...Search. I have searched and searched and although I have found a great deal of information, nothing matches my problem, nor do the recomendations seem to fix it.
I am having shifting problems with my AW4 behind a 4.0. The problem is that it seems to be starting out in 2nd gear. It then shifts into 3rd gear quickly and so on into 4th. If I stop the vehicle and put it into 1-2, it will start in 2nd gear and then quickly go into 3rd. Every now and then, it will lock up and drop into 1st gear while I am moving (with the lever in 1-2). It also won't down-shift when I am at WOT while driving up-grade on the highway.
I put in a new TPS with no improvement. Re-timed it with better throttle response but still no shift improvement (although I will do it again just to make sure). Checked all of the vacuum lines (the ones that I can figure out where they go), double-checked the MAP sensor, put in a new CPS, etc. etc. etc.
A little history...I was having trouble with the starter relay, the ignition (in the column) wouldn't let my brand new lock cylinder release the key, and the NSS (had to play with it to get it to start sometimes). I bypassed all of these problems with a "bump switch" to start the vehicle. That fixed all of the other problems, but I assume that doing this caused my current problem. That is the time when my shifting problems seemed to begin.
I know there are a TON of threads on the AW4 and various problems, but like I said earlier, I have been reading these for days and trying the suggestions without locating my problem. I would REALLY appreciate any help if anyone has solved this problem before.
Thanks,
Kevin
I am having shifting problems with my AW4 behind a 4.0. The problem is that it seems to be starting out in 2nd gear. It then shifts into 3rd gear quickly and so on into 4th. If I stop the vehicle and put it into 1-2, it will start in 2nd gear and then quickly go into 3rd. Every now and then, it will lock up and drop into 1st gear while I am moving (with the lever in 1-2). It also won't down-shift when I am at WOT while driving up-grade on the highway.
I put in a new TPS with no improvement. Re-timed it with better throttle response but still no shift improvement (although I will do it again just to make sure). Checked all of the vacuum lines (the ones that I can figure out where they go), double-checked the MAP sensor, put in a new CPS, etc. etc. etc.
A little history...I was having trouble with the starter relay, the ignition (in the column) wouldn't let my brand new lock cylinder release the key, and the NSS (had to play with it to get it to start sometimes). I bypassed all of these problems with a "bump switch" to start the vehicle. That fixed all of the other problems, but I assume that doing this caused my current problem. That is the time when my shifting problems seemed to begin.
I know there are a TON of threads on the AW4 and various problems, but like I said earlier, I have been reading these for days and trying the suggestions without locating my problem. I would REALLY appreciate any help if anyone has solved this problem before.
Thanks,
Kevin
