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frank, Chevrolet Technician
Category: Chevy
Satisfied Customers: 3420
Experience:  33 years experience,24 years of Chevroler/GM experience and training .ASE Recertified Master Tech,
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1998 chevy truck: ignition timing..a vortec 350 is..disconnect

Customer Question

how to set ignition timing on a 1998 chevy truck with a vortec 350 is there a plug to disconnect and where
Submitted: 9 years ago.
Category: Chevy
Expert:  frank replied 9 years ago.
Timing is set using a scan tool and watching the cam offset in the parameters. The crank sensor is fixed-that sets timing and the distributor is only a distribution point and a place for the cam sensor. When the crank marks lines up,the rotor points to the arrow on the distributor base.Not to burn up the contacts in the cap,the cam off set is then set to within 2 degress of zero with a scanner.

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