Tried search feature and didn't get any hits on this subject. About 3 months ago my speedometer starting acting erratically. It would bounce from 0 to whatever the current speed was and would sometimes just stay at 0, and others work fine at current speed. Cruise also will only work if speedometer isn't acting foolish. Found topics on this and determined that it was probably the transmission speed sensor, which I have ordered and will replace this weekend. Tonight while driving, I noticed that my temp gauge is now fluctuating from the middle and will drop down and go back up. This is new and I am hoping it is not related to the speedometer issue, which could be a cluster problem or possibly the ECU. All other gauges are working properly with no issues. Anyone have any insight into this. It is a 2002 Frontier XE, 3.3 NA, 2 wheel Drive.