Harness and PCM installed, all wired up and it will not crank........ 98 Tahoe

[1991SSP]

Got everything finished up tonight and it's ready to turn over... But it will not crank, any suggestions?? I eliminated the stock black pcm and I have yet to figure out how to get my gear indicator light in the dash to work, started thinking that this may be the culprit

Any suggestions?

[conekiller01]

Turning over but not firing? Not turning over at all? Click from the relay anything? Try putting the key in the run position and jumping the starter to see if will crank more details and hopefully by that point someone that has done a swap can help you out lol good luck and make sure not to overlook the small stuff!!!

[farmtruc]

The starter wiring probably goes thru the PRDL switch.

[1991SSP]

I thought about the neutral safety switch last night.. I'll have to dig more into it this evening

[RPM Graphics]

i don't have a NSS in mine & it starts fine. there's a yellow wire in the 98 fuse/relay center that you need to connect to the purple wire that goes to the starter. i have an an F-body 4l60e, the f-body have the NSS on the shifter not the trans. without the NSS your indicator lights & reverse light won't work.

[1991SSP]

My battery in the ride was shot.... I'm gonna pick one up monday, I hooked up a charger with 200 AMP jump start and it still will not crank good enough to start... even with that I did not have a gear indicator on the dash lit up.......