4LowandGo
NAXJA Forum User
- Location
- Kennesaw, Georgia
Hello All,
I have a '92 XJ with a 4.56 gears, a high output motor, a 4.0 and an automatic AW4 transmission. When the vehicle is cold and I start it up and put it in drive it will start out in second gear. Once I go through the gears once or twice it will then drop down to first and shift through all the gears like normal. When the engine is hot it will never start out in second and it will always start out in first gear. I've adjusted the throttle cable, replaced the TPS, and cleaned the NSS. The reverse lights work and the vehicle will start in neutral and in park like its supposed to. I've checked the fluid level a few times and everything looks good. I have even bought an extra TCU from the junkyard and swapping it in didn't help at all.
Here's a good lead... When the vehicle is cold it will fail the manual shift test when the TCU is unplugged. As soon as I drive 1/4 mile or so it will then drop down to first and act normal. I've seen posts on the manual shift test, but I haven't found much info on what to do if it fails. What do you reccomend?
I have a '92 XJ with a 4.56 gears, a high output motor, a 4.0 and an automatic AW4 transmission. When the vehicle is cold and I start it up and put it in drive it will start out in second gear. Once I go through the gears once or twice it will then drop down to first and shift through all the gears like normal. When the engine is hot it will never start out in second and it will always start out in first gear. I've adjusted the throttle cable, replaced the TPS, and cleaned the NSS. The reverse lights work and the vehicle will start in neutral and in park like its supposed to. I've checked the fluid level a few times and everything looks good. I have even bought an extra TCU from the junkyard and swapping it in didn't help at all.
Here's a good lead... When the vehicle is cold it will fail the manual shift test when the TCU is unplugged. As soon as I drive 1/4 mile or so it will then drop down to first and act normal. I've seen posts on the manual shift test, but I haven't found much info on what to do if it fails. What do you reccomend?