What is the temp outside when you are trying to get the light to turn on? The grid heater turns on when the temp falls below 56 degrees F. If it is warmer than this it does not turn on. There is some info in your owners manual. (Mine is an 07....not sure if the same applies to your 98.5)
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It is above 56 degrees, but the light always comes on when I first turn the key.

 

Man I HATE Gremlins !!



Good luck to ya !!

 

Well after all that, it turns out the WTS light not coming on was just the result of a week battery. I just installed new batteries and the light started working again. This was after my mechanic told me I needed a new instrument cluster at the cost of $900. Good thing I didn't listen to him.

 

Whats the scoop on the u joints? I would think thats where that weird vibration is coming from.

 

Well since I put the new batteries in, I haven't noticed the truck hunting for gears either. Since it is not hunting for gears, there has been none of that vibration that I talked about. I got underneath the truck and played with the u-joints and tried to get them to move to see if there was any play, but could not find any. The truck is still a bit difficult to shift into reverse. I haven't noticed it make that ping noise when I shift into reverse in a while, but that noise seems to come and go.

 

glad to hear thet the batteries were faulty.. no the instrument cluster.


as far as the trans, I would change the filter and adjust the bands just to make sure its all good

 

The truck hasn't done the vibration thing since I changed the batteries. The bad vibration happened when it was hunting for gears. The u-joints seem fine from what I can tell. I got underneath the truck and tried to wiggle them around, but could not sense any play.