cartercd
SILVER Star
This is in reference to my 1997 FZJ80 with A343F transmission and 185K miles. What happened:
- My UltraGauge signaled a pending trouble code P0770, which per FSM is a “Shift Solenoid E Malfunction (Shift Solenoid Valve SL)”. The check engine light never came on.
- I drove about 8 miles on surface streets (less than 45mph) with no issues
- I got onto I-10 in Tucson and after a few miles I lost forward progress. Pressing the gas pedal increased the rpm but no acceleration. I coasted across 4 lanes of traffic and made it onto the shoulder, although it was a precarious spot. At that point the transmission was not working at all.
- I shut the vehicle down while contemplating my next move. After a few minutes I restarted the truck and was able to progress another hundred yards to a safer spot. I did have to rev the engine higher than normal to make forward progress. Transmission fluid level was good, and I did not smell any burning oil.
- I got my money’s worth from my AAA Plus membership, with a 90-mile tow to Phoenix with my 100-mile allowance. The tow truck driver drove on and off of the flatbed with no issues and I drove into my garage with no problem. The next day I drove around the neighborhood with zero issues. I have not taken it on the highway for higher-speed testing to see if I could replicate the problem.
- Why a pending trouble code on my UltraGauge, but no check engine light? It seems like there was adequate time for the computer to trigger the trouble code.
- Is the function of the shift solenoid valve SL solely to lock the torque converter, or does it have another function? My problem referenced above seems to be beyond a torque converter lockup issue (which I believe only happens at around 50mph)
- Is the solenoid in question the one highlighted below? Solenoid Valve SL = Lockup Solenoid?
- If it is not the solenoid, but a torque converter or clutch issue, would I still be able to gleefully drive around my neighborhood now as if there was no problem?