Sometimes the speedometer oil pressure and temp gate will stop working. I don't know what to check. Just changed out all the battery terminals hoping it was a bad ground but it started acting up again today mid driving. Any ideas ?

 

Check ALL grounds on the truck, there are several besides just battery terminals- fenders and on back of engine there a ground strap going to the frame- Sounds like a bad ground since its intermittent

 

Checked them all. Good and tight. So started taking dash apart and got the speedometer cluster out and there are some burnt places on the big circuit board. Guessing that's going to be my problem spot.

 

Can you tell what items got hot on the Printed CB? diodes, resistors,capacitor etc? Or was it burned on the PCB connection spot. Maybe a failed component in the card caused it to over heat.
Not sure how much a new PCB costs but it may be helpful to pull a schematic and check the voltages from the PCM to that plug and make sure it doesn't fry another one.