Alright guys. We are having a TIME with my buddy's new 86 blazer. For those of you who haven't seen my earlier threads, here is the story.
So he bought it Thursday evening, is driving it home and made it 30 miles then the thing dies on the side of the road. He calls me, I come out and start checking everything I know of, found that it had no spark. We suspected that the ESC module (I think that's what it's called, the module behind the glovebox) and its a carbd truck btw. So he called a wrecker and we had it towed home.
Next day: we try running a hot wire from battery to Batt terminal on the distributer, still no spark. Start checking things, coil has power, all connections are good. Tried bypassing the ESC again, still nothing.
Today: first we bought a new ignition module and new plugs and wires, still no spark, then we figure out that the coil had power going in but no power coming out, so we put a new coil on it, the truck fired right up... BUT, the wires on the top of the coil were sparking, loudly. There were nice blue sparks that were visible with the coil cap off and with the cap on you could hear them sparking. What is this???
Next, we try adjusting the timing, that had no effect on the sparking coil. So I tell him to shut the truck off. 5 mins later, it won't start up. Haven't touched a thing. It was doing the same thing as before, no spark again.
We took a break for dinner then came back out.
We thought we had burned the new coil up so we went and exchanged it for another one, picked up a new cap and rotor while we were there. Come back home, install it all, and it still won't start. And that's when we called it a night.
I'm going back over to his house to work on it tomorrow and need some ideas yall.
To sum all that up, we have replaced:
Cap, rotor, wires, plugs, coil and ignition module.
What else could be wrong? I am at a loss here guys. But ck5 hasn't let me down yet so I'm sure with yalls help we will git er dun.
Thanks
So he bought it Thursday evening, is driving it home and made it 30 miles then the thing dies on the side of the road. He calls me, I come out and start checking everything I know of, found that it had no spark. We suspected that the ESC module (I think that's what it's called, the module behind the glovebox) and its a carbd truck btw. So he called a wrecker and we had it towed home.
Next day: we try running a hot wire from battery to Batt terminal on the distributer, still no spark. Start checking things, coil has power, all connections are good. Tried bypassing the ESC again, still nothing.
Today: first we bought a new ignition module and new plugs and wires, still no spark, then we figure out that the coil had power going in but no power coming out, so we put a new coil on it, the truck fired right up... BUT, the wires on the top of the coil were sparking, loudly. There were nice blue sparks that were visible with the coil cap off and with the cap on you could hear them sparking. What is this???
Next, we try adjusting the timing, that had no effect on the sparking coil. So I tell him to shut the truck off. 5 mins later, it won't start up. Haven't touched a thing. It was doing the same thing as before, no spark again.
We took a break for dinner then came back out.
We thought we had burned the new coil up so we went and exchanged it for another one, picked up a new cap and rotor while we were there. Come back home, install it all, and it still won't start. And that's when we called it a night.
I'm going back over to his house to work on it tomorrow and need some ideas yall.
To sum all that up, we have replaced:
Cap, rotor, wires, plugs, coil and ignition module.
What else could be wrong? I am at a loss here guys. But ck5 hasn't let me down yet so I'm sure with yalls help we will git er dun.
Thanks
