Whoops. Was hammering that off in time to watch Mantracker. Should have mentioned that he should replace the sensor and maybe even the pigtail first.
The PSOM will not always go blank. There is really no prescribed rule as to how they malfunction. Some shut down entirely. But I have heard many that say they will work. Sometimes just the odometer and sometimes the speedo.
In my case (over the span of a few weeks), the speedo needle started jumping around. Then it would quit. Then it would work. For all that time, the odometer worked. Then one long drive and the odometer started to flash. At a couple points, the odometer actually was losing mileage (few miles). Then, for a period of about 40 miles in the same trip, everything worked perfectly, allowing the cruise control to work. Then everything died, including the odometer for a while, and then the next day, it all worked again.
I agree, its much easier on the mind and wallet to buy cheaper parts. But again, if I wanted to avoid all these problems I would just go and buy a new 6.4L. :cowboy:
If you don't fix the problems right away, you get to experience all kinds of fun things. :lol: