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∙ 12y ago8 degrees before top center
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∙ 12y agoelectronic spark timing connector
That year did not have a EST/ electronic spark timing connector. The timing is controlled by the PCM / Powertrain Controll Module. It requires a engine scanner to ajust the timing. You can not use a timing light.
That requires an OBD2 engine scanner to set the timing. You can NO longer use a timing light.
your truck does not have a bypass connector
The engine would not run. The engine would lack compression.
If this is the 4.3 engine, it is located on the bracket next to the ignition coil.
Turn engine over and observe is distributor is rotating
Doesn't have a timing belt.
Chevy did not use timing belts on truck engines. T-chain only
my check engine light is on on start up truck runs great after wormed up runs rough
Assuming this is a truck, if it has a standard transmission, TDC. If it has a automatic transmission, 4 degrees BTDC.
it has a timing chain NEUTZ