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So after a key mishap I changed the ignition. Did tell relearn process and the security light stays red like it says it should. But ever since my truck will not stay running more than 10 seconds. I've changed the fuel pump, fuel filter, cleaned the throttle body and it seems the gas still is getting cut off. Everyone is at a loss here.
 

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07 Chevy Colorado, 2.9L 5 speed manual
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The security light is supposed to turn off after about 15 minutes. I would try the relearn again.

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You could have just added to the other Thread that you started.

Exactly which 'ignition' part was replaced? You previously showed a picture of the ignition cylinder with the key. That was the ignition lock cylinder. Did you also replace the ignition switch? That is the part on the other end of the housing, with the electrical plug on it.

Why was the fuel pump replaced?
 
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