Question about 1999 Chevrolet Silverado 1500

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I have a 99 Chevy 1500 that the shuts down minutes after i start the engine.Security light would come on every now and then but never killed the truck.Fuel pump and filter & injectors are good.

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You need to put a scanner on the diagnostic link and see what the code is. Depending on the mileage on the truck you may have a catalytic converter that is plugged. If you remove the 02 sensor ahead of the cat. the truck should start and run, it will run rough but it should start and run and continue to run.

Posted on Apr 30, 2017

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Posted on Jan 02, 2017

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That's will explain they security light problem http://vatspasslockpasskeysecurityhelp.yolasite.com/

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The knock sensor will not cause a no-start. The knock sensor only retards the timing when the engine is running. If the starter is not working we need to check the battery voltage, battery cables, starter, engine ground, neutral safety switch, ignition switch, security system. These are the only things that can cause a no crank.
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My chevy 2500 has the security light on, and it will not start, its a standard if that will help. how do i get it to start back up?


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1 Answer

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Yes it sounds like a security system problem. Does the new column have pass key? You are leaving the key on until the security light stops flashing? The light is flashing for 10 minutes?

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Sounds like you end up at the dealership after-all.They will need to change the vin number to match your truck or the security violation code will not go away.

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1 Answer

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Apr 24, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

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You will have to have the dealer reset the security light to restart vehicle.Check all engine and chassie grounds because this is where the lighting would exit the vehicle.It sounds like a ground burnt through.

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first if you have a chiltons manual check the troubleshooting /diagnostic codes. Check fuel filter. check the codes for the computer. sounds like the computers sending back a kill engine order.

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