Question about 2000 GMC Denali

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I change the fuel pump, and when i finish a security light appears on the dash and wont start

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Ok,you will need to hook up a battery charger to it.turn the key on and leave it on for 10 minutes,turn it off for no longer than a minute,turn it back on for 10 minutes,then turn it off for no longer than a minute,then turn it on for ten minutes then turn it off,then it should start.somehow you lost your pragram in the key.this will take 30 minutes or so,thats why you need the battery charger,dont try to start it between cycles or you will have to start over again

Posted on Jan 31, 2010

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