My truck died on me the other day while driving. Seemed to be a faulty alternator. It had a code 41, 46, and 34 I took it out and had it tested. Turns out that both internal functions failed. I put the new one in and off I went. The next day, I noticed that my volt meter on the dash showed I was up around 18 volts. This was alarming but I wanted to get home. By the time I got home the volts read at 10. The same codes were thrown. I took the alternator out and returned to have it tested. It was now faulty as well. I just swapped it for another new one. It was tested before I left and read fine. I put it in and now I still have the OBD1 code 41. I do not want to blow this alternator as well. I have read that the PCM may be the issue, as the voltage regulator is in there. The code 41 is for a speed control servo fault apparently. I have read about the PCM turning into a wild goose chase and I cannot find any information on a speed control servo for my model. Does anyone know about any testing I can do, or if there is a known issue with this?
have the same problem?
Tuesday, April 23rd, 2019 AT 8:29 AM