tmxmotorsports
SILVER Star
You remove the engine harness from the 80 by unplugging it at the ecm and the h1 h2 connectors behind the glove box you don't need to do anything inside.
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Right, but cleaning up the wires on the cowl harnesses now. Ex. unused wires from old fuel pump relay, igniter, etc
tmxmotorsports
SILVER Star
You can do whatever you like just saying there isn't a real need for it
The engine harness comes right out the front of the firewall. 2 minute job. No need to take the dash apart, just remove 2 screws from the glovebox door hinges.
I basically just take out all the old unused injector and sensor wires, replace the starter and EFI power wires with new and route everything exactly where it will go when it goes back in.
What is this cowl harness you speak of?
On the driver's side (left), I just disconnected everything, and left it in place. I did use heat shrink to bundle them. I didn't separate the unused part of the harness out.
tmxmotorsports
SILVER Star
Replaced the battery. The drop in RPM’s when my fans would kick on while idling went away. But my hard to start issue is still there. I think I just bought a junk starter. Time to buy a GM genuine. $$ ugh lol
Your hard start is that every time you started the engine or just after a drive. In my case, bad fuel pump wire caused the fuel pump to overheat. Is your fuel pump always priming when you have the key on?
No. Fuel pump is perfect. I hear the starter stick out and just hit the flywheel. Won’t turn it. I have to keep bumping the key and it will eventually go. But if I put a jumper on it, it goes almost first try every time. That’s what made me think it might be a battery issue. But it’s to my knowledge a junk starter at this point. I will replace with a better unit and see what happens.
How long is your starter wire and is it making good contact? I moved my battery to the passenger side in order to keep using the stock length starter wire.
@FlyinFaded check the ground from the battery to the engine and to the chassis? What is the condition of the fusible link, they are cheap so I would just replace it. How old is your battery, maybe time for a replacement.
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I did replace the battery. My fusible link is good. My grounds are good. It’s kicking the bendix out. Just not turning the motor every time and after I keep trying for a bit. The bendix starts to not kick out every time. Maybe every other or every third. I just think it’s a weak starter. If a new good starter doesn’t fix it. Then back to my wiring guy it goes.
Pretty sure it’s all making good contact. When I had to replace the first cheap starter with the warranty cheap starter, none of the wires were tight. They all had slack on them and making good contact with the starter.
The flywheel and starter compatible? You prob got it right. No grinding noise right.
Reason why I mentioned this. The parts store sold my dad the wrong starter and it didn't start on the first try.
Only other thing I can think of is the crank sensor failing, but you would see a code. Good luck man.
.check the starter signal wire on the starter sometime the plug does not click all the way in and you get problems like you talking about
