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How to reset the timing on a 98 2500 5.7 vortec 

Edited by 98cheV

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You don't really reset anything, doesn't exactly work like clicking a button.


Make is the reason for wanting to "reset" the timing?


Other than making sure the mechanical parts are working and installed right, the timing is controlled by the computer.


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Afaik you have to ave a scan tool that supports it. Otherwise mark everything before you remove it and get it as close as you absolutely can when reinstalling

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If the distributor has been removed and you are trying to install it correctly: With cylinder 1 at TDC compression stroke, install the distributor with the rotor on the distributor pointing at cylinder 1. If you have a timing light, clip it on cylinder 1 spark plug wire and adjust the distributor to 0 degrees which is cylinder 1 TDC based on the timing marks on the crank pulley and timing cover. Peace!

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