Backup lights are wired in and work. I need to tie the wiring down, but it's all plugged in. Getting to the plug on the trans is an effort in braille. All I can do is feel it. I got the connector up to it and felt it "click" into place. Scratch that one off the list.
Now a new issue developed. I'm realistic to grasp that the build is still fresh and issues may pop up. Better now than 50 miles into the desert somewhere. This happened in my driveway, so that was convenient. I went to take the truck to work yesterday. It lit right off in 20-degree temp. It ran for 3-5 seconds and stalled like I hit the key. Needing to get my ass to work, I pop the hood and check all the fuses. They all look good, nothing popped. Hmm. Need to go to work, so I switch back to the Caddy and haul ass.
I start checking today. Brainstorming with Larry Friday night has us thinking I might be out of fuel or don't have the power supply locked in like it was before. First thing is looking at the fuel pressure. So I throw a gauge on the rail and turn the key on. Nothing. To check the wiring and the pump I unplugged the relay and put my manual test relay in and flip the switch. Bingo, fuel pressure. That tells me the circuit is good and the pump builds pressure. That's not it. Why isn't it turning the relay on? I plug in my Bluetooth device to the ALDL connector and notice something odd. Normally there are some LED status lights on the device that come on when it's plugged in. Key-off I get the normal red LED indicating I have power. Turn the key on and the light goes out and I don't get the green blinking LED that shows it's connected. Also, watching the status of the device on my phone, key off it's connected to the device. Turn the key on and the Bluetooth connection is lost. So either it's not getting power or not getting ground.
I move outside and start looking at the connections to the PCM and where I moved the power wires from the battery to the junction block. I moved the wires back to the battery and retried. Nada. Now I start looking at the two main connections to the PCM. Nothing looks out of sorts. I take the PCM off the set it on the inner fender. I hook the power back up to the battery and turn the key on and the dang thing started. ???? I went back under the hood with it running and start wiggling the wires at the PCM. I get it to stall after hitting a certain spot. Key still on, I can wiggle it again and hear the fuel pump relay click and also see the pressure peg on the gauge. Wiggle it again and it stopps. I pull the plugs off the PCM and all the terminals look good. I got the PCM set where it was working again, back on its mount and it was starting every time again. I decide to take it for a run just to test and I don't make it out of the driveway. Stalled again. I go back and pull the PCM off the mount and notice something as I was wiggling wires with it loose. There was a small spark from the PCM housing when it rested on the side of the mount where one of the bolts is. I noticed the fuel pump relay had clicked. I thought it was me wiggling the harness but it was actually grounding the housing that was waking it all up. I snap it in place and go back to the garage and made a quick ground wire and installed it to ground the housing. It worked. The engine starts and runs as it did before. Bumps and shakes on my drive didn't give it a hiccup. I've fixed the symptom, but don't have a clue why the PCM housing is requiring grounding all of the sudden. It doesn't make sense. GM PCM's don't require external grounding. I might be calling the folks at Howell Monday just in case.
Park brake fun tomorrow.