keatonsmitty217
New Member
Long backstory skip to *** for the core issue.
-A few months back, on a trip from WA to MT, I overheated my engine badly going up the Columbia river basin, pouring out coolant and so on. I took it easy for the next 100 miles because my radiator was leaking from a pinhole in the top. I stopped to check again and the pinhole was plugged and done leaking(without my intervention). I drove on without issue until I stopped again, once I tried driving, I had very little power, so I checked the engine again and found a vacuum leak between the intake plenum and manifold, with some RTV it was fixed, ran like a top again. I drove another 100 miles or so and stopped to take a 20 minute break, when I started it back up it was fine, but as I was driving, there was a pop from the engine bay and I lost most of my power again. I limped it the rest of the way to my hometown with a horrendous misfire. once it had cooled down again I replaced both of the gaskets for the intake manifold to head, and the plenum to manifold gasket, this didnt fix the issue. after the truck sat for a few months(wouldnt run) we came back at it and found a minorly blown head gasket on the drivers side(not super low compression, but still too low). We spent a few days redoing the head gasket and cleaning up cams, put the truck back together and it still barely ran, after working with the distributor to change timing, it still barely ran.
***
We found out that there was no spark going to the #1 spark plug( on the first rotation of the motor it sparks, but then stops--seen with timing light) we tossed a new rotor, distributor cap, distributor and spark plug wires at it without anything changing, we checked the coil, which is still within spec, swapped for an extra ECU we had around, and still nothing getting to the #1 spark plug, any ideas for what might be causing this issue?
Any help is much appreciated
-A few months back, on a trip from WA to MT, I overheated my engine badly going up the Columbia river basin, pouring out coolant and so on. I took it easy for the next 100 miles because my radiator was leaking from a pinhole in the top. I stopped to check again and the pinhole was plugged and done leaking(without my intervention). I drove on without issue until I stopped again, once I tried driving, I had very little power, so I checked the engine again and found a vacuum leak between the intake plenum and manifold, with some RTV it was fixed, ran like a top again. I drove another 100 miles or so and stopped to take a 20 minute break, when I started it back up it was fine, but as I was driving, there was a pop from the engine bay and I lost most of my power again. I limped it the rest of the way to my hometown with a horrendous misfire. once it had cooled down again I replaced both of the gaskets for the intake manifold to head, and the plenum to manifold gasket, this didnt fix the issue. after the truck sat for a few months(wouldnt run) we came back at it and found a minorly blown head gasket on the drivers side(not super low compression, but still too low). We spent a few days redoing the head gasket and cleaning up cams, put the truck back together and it still barely ran, after working with the distributor to change timing, it still barely ran.
***
We found out that there was no spark going to the #1 spark plug( on the first rotation of the motor it sparks, but then stops--seen with timing light) we tossed a new rotor, distributor cap, distributor and spark plug wires at it without anything changing, we checked the coil, which is still within spec, swapped for an extra ECU we had around, and still nothing getting to the #1 spark plug, any ideas for what might be causing this issue?
Any help is much appreciated
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