I have an 01 Silverado 5.3 4x4 Just had a tranny from finish line trans put in. After install I have had a problem with my gauges all going to 0 Also the trucks PND321 does not get displayed. Does any one have an idea of what this might be?

 

Did anybody stretch, or damage the pcm harness? The trans temp is sent thru the pcm, so is the PRNDL.

 

I just looked at the schematics for your truck. I'm with wkdivr. Outputs from the PRNDL and the trans feed the PCM which feeds the gauge cluster. Something appears screwed in the wiring harness to the PCM.

 

Ok aamco istalled my tranny and they dont even want to answer my questions about the wiring harness. So i got under there and checked it out and every thing looks ok. So i am gonna take it to a local shop and have them look at it. Thanks Guys

 

You toasted a fuse.inside the drivers door on the end of the dash pull that cover off and pull out one at a time.