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1998 Chevy Silverado C1500 w/5.0 liter 305

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7 years 2 months ago - 7 years 2 months ago #23631 by BigD1395
It's a 1998 Chevrolet Silverado truck with the 5.0L/305 cubic inch, and I've scanned it and come back with U1192 passlock/EVO/VTD. With history codes of C0503, C0504, C472, C0495. To which I've tried everything to bypass this passlock system bull crap to no avail. Trucks symptoms before today, start then immediately stalls. Tried resetting the system with the ten minute key in on position no start, turn off for ten seconds. Did this 3 times. Then attempted to start no luck. I can put starting fluid in the intake starts the truck.
Thanks for the help in advance.
Last edit: 7 years 2 months ago by BigD1395.

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7 years 2 months ago #23653 by BigD1395
Replied by BigD1395 on topic 1998 Chevy Silverado C1500 w/5.0 liter 305
Just a bump to keep subject in top. Anyone know how to bypass these types of passlock systems?

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7 years 2 months ago #23803 by Paul P.
Replied by Paul P. on topic 1998 Chevy Silverado C1500 w/5.0 liter 305
I googled this for you and seem to remember Eric O. from South Main Auto Repair performed this on a Corvette.


kingbain.com/how-to-permanently-disable-gm-passlock-system/

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