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    asdfzxcv's Avatar
    asdfzxcv Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 17, 2009, 04:38 AM
    Starting vehicle
    I have a 2000 tahoe Z71 edition. I can't start it. THe security light is flashing instead of staying on for 5 seconds and going away. I have changed out the fuses, but it still won't start. The engine turns over, but it seems to not be getting any fuel. What else can I do?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Oct 17, 2009, 07:11 AM

    . Check all under hood and under dash fuses with a test light or multimeter. It will test for power to the fuses, as well as the fuses themselves.

    . Check for codes.

    . Check/replace the crankshaft position sensor.

    . Check for fuel. Do you hear the fuel pump run, when the ignition switch is turned to ON?
    RickMN's Avatar
    RickMN Posts: 244, Reputation: 52
    Full Member
    		  
    #3

    Oct 17, 2009, 08:25 AM

    I have a whole series of article on the GM PassLock and PassKey systems on my blog. This is a very common problem and if you're handy, you can fix this yourself.

    GM vehicle won't start, theft light flashes
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