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2004 Chevrolet Trailblazer Question: no start

 

Question

gfitrim, Fontana, CA, September 02, 2013, 15:04
 Rookie

replaced fuel pump tries to start will not stay on

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  • Answer #1

    goodguy September 02, 2013, 15:32
     Master

    scan test for codes and check fuel pressure

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  • Answer #2

    Dleib September 02, 2013, 16:06
     Enthusiast

    I would first check to see if you have spark. Then check to see if you have fuel. If you have spark and fuel check your timing. It helps to narrow down the problem.

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  • Answer #3

    pushrod September 02, 2013, 18:46
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     Master

    Can you hear the pump run for a couple of seconds when key is turned on? Listen at the filler neck with cap removed while someone turns key on. Pump should run for a little bit then cut off. If key is cycled to start then let off, pump should repete this each time! If no pump operation, check ALL fuses and pump relay! Finally, is the security light flashing while cranking?

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    gfitrim, September 02, 2013, 21:03
     Rookie

    What is the security light and were do I look

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