I have a 1994 fzj80 with the A442f transmission. The truck has about 282K miles. One day driving down the road I notice the A/T Temp light come on, not bright but very faintly. I pull over and let the car idle for 10 minutes. The dipstick was reading low on fluid. It took 4 quarts to read at the proper level. I proceed down the road gently. 5 minutes or so later the truck is in 3rd and slip out of gear with the thud. I manually shifty to 2nd and drive back to my shop, where I discover I also don’t have reverse. No sound or anything, just zero engagement.
I checked the codes and got back a code 62 – this indicated a solenoid issue. I had previously replaced all 4 30K miles ago. BTW, I run Mobil1 ATF. I carefully drained pan into a clean container then strained everything I got through a fine high micron paint strainer. Everything was clean. I put the fluid in a clear cup next to some brand new fluid, very little difference and no funky smell either. I drop the pan, clean as a can be in there. I took some extra time to examine and also pulled the screen – again super clean. Installed new solenoids. When I started it up, there was no change, but reverse did catch a few times over a 10 minute period, but it would slip right back out. Next day try it again, everything works like there was never a problem. Strong pulling in reverse and all forward gears. I took it for a drive, all good. Today I drove it about 8 miles and the truck slipped out of 3rd again and I have no reverse gear again. Drove it back in 2nd gear.
My question is what are my next steps in diagnosing the problem? MY AT knowledge is limited so I don’t know if this is a valve body issue, a toque converter issue or an external electrical issue. I have the a442 manual and have read a good bit of it. Thanks for reading.
Also RIP Tools R Us, I've read so many of your posts.
I checked the codes and got back a code 62 – this indicated a solenoid issue. I had previously replaced all 4 30K miles ago. BTW, I run Mobil1 ATF. I carefully drained pan into a clean container then strained everything I got through a fine high micron paint strainer. Everything was clean. I put the fluid in a clear cup next to some brand new fluid, very little difference and no funky smell either. I drop the pan, clean as a can be in there. I took some extra time to examine and also pulled the screen – again super clean. Installed new solenoids. When I started it up, there was no change, but reverse did catch a few times over a 10 minute period, but it would slip right back out. Next day try it again, everything works like there was never a problem. Strong pulling in reverse and all forward gears. I took it for a drive, all good. Today I drove it about 8 miles and the truck slipped out of 3rd again and I have no reverse gear again. Drove it back in 2nd gear.
My question is what are my next steps in diagnosing the problem? MY AT knowledge is limited so I don’t know if this is a valve body issue, a toque converter issue or an external electrical issue. I have the a442 manual and have read a good bit of it. Thanks for reading.
Also RIP Tools R Us, I've read so many of your posts.
