Help 99 Tahoe 03 5.3 install wiring probs
07-14-2013, 04:23 PM
#1
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Help 99 Tahoe 03 5.3 install wiring probs I need a schematic on the Fuse Block it's a 68-way Blk.
I found a older thread on it but my wires aren't matching up to that one.
Oh I'm installing a 5.3 in a 99 Tahoe and it has the 32-way Fuse Block so I was trying to figure out the wires I needed from the 03 5.3 harness to make this thing run, Other then the pink and orange wires. I bought a complete 03 5.3 out of another Tahoe with a complete wiring harness and ecm but I'm leaving the old ecm in there for the start, speed sensor, A/C and things like that.
I found a older thread on it but my wires aren't matching up to that one.
Oh I'm installing a 5.3 in a 99 Tahoe and it has the 32-way Fuse Block so I was trying to figure out the wires I needed from the 03 5.3 harness to make this thing run, Other then the pink and orange wires. I bought a complete 03 5.3 out of another Tahoe with a complete wiring harness and ecm but I'm leaving the old ecm in there for the start, speed sensor, A/C and things like that.
06-12-2018, 09:48 AM
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Old thread but worth a shot, doing the same swap on a 96 vortec truck and looking for the info on retaining the factory harness and adding to it to use my 6.0 engine. Any luck finding the pin out?
06-12-2018, 08:11 PM
#6
http://www.ls1truck.com/forums/lsx-t...-lsx-swap.html
