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Timing problem
I am working on a 1986 C20, 4.3, carbureted, HEI w/ coil in cap, auto. I am trying to install the distributor and can't seem to get the timing right. Problem #1; there is no timing tab on the engine block. Looking at the front of the engine and working clockwise, where should the timing mark...- Uncle Larry
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- Replies: 1
- Forum: Tech Discussion
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Ignition trouble (ECM?)
I have a 1986 C20, 4.3, carburated, auto trans. I am having a no spark issue that I believe to be caused by the ECM. The only identification I find on the ECM is FJT 888021, 16048021, and a date code of 1289. The service number space is blank. The cuircut board does not show any signs of damaged...- Uncle Larry
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- Replies: 3
- Forum: Tech Discussion
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1986 Ignition trouble
I bought a 1986 C20 with 50K miles. It had been sitting for a long time. The seller said the knock sensor was bad, causing a no spark condition. He had disconnected the wire harness from the ECM to distributor and jumped out two wires on the distributor side of the harness, effectively bypassing...- Uncle Larry
- Thread
- Replies: 3
- Forum: Tech Discussion
