Question about 2008 Chevrolet Avalanche

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2008 Chevy Avalanche. Cranks, but why won't it start?

Why my 2008 chevy avalanche crank over, but won't start.

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  • julius scott May 18, 2015

    So far nothing has work. Replaced the fuel pump, fuel model, and the machine tells me that he still can't get the car to start. Please God help me. This car broke down on me 3 days after I bought it.

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Your fuel pump is dead. It happens. It's not security. Security will pump up pressure then turn the pump and injectors off. The vehicle will run for about two seconds and die. If you have checked the fuel fuse and replace the relay. the pump is dead. The guy on top has a 98 vehicle. You can't bypass your security. You have pass lock III.

Posted on May 27, 2015

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Sounds to me like your security system is failing. I had this happen to my chevy. I did a lot of research and found a company that sells a module to bypass it and allow the car to run.. this is a part that you can install on your own and the company guarantees it. they have great customer service if you have any question . I did mine almost 5 years ago and my car is still running great. check it out see if u think its your issue, hope it helps ya out. good luck Do It Yourself GM Security bypass

Posted on May 18, 2015

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Yes you need to do a basic diagnostic on this vehicle have someone turn it over check for spark at the plugs hit the F you button to see if you have fuel pressure on you feel real and see if there are any codes in your computer

If you need further help, reach me via phone at https://www.6ya.com/expert/james_9c1b039055413ffa

Posted on May 14, 2015

Testimonial: "I will try today.but there is no fuel pressure going to the injectors. I do not know what could be the cause"

  • James Eskridge May 20, 2015

    first of all you must make sure that you don't have a security like coming on anti theft system if this light is coming on the car will not start no matter what you do if there is not a security problem you can get some starting fluid spray to the intake if it cranks up and run then you know that either the fuel pump is bad or the cam sensor is bad

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There is no magic fix button provided as standard equipment on your vehicle. You will need to perform standard diagnostic procedures to ascertain the source of the failure to start.
Begin by doing a readout of all stored codes from the ECU. This will give you a starting point from which to proceed in diagnosis. Check all systems, including FUEL, IGNITION, and SECURITY.

Posted on May 14, 2015

Testimonial: "Thank you Dale. It hava no fuel pressure, and the fuses are good, any idea?"

  • Anonymous May 16, 2015

    Pretty sure your vehicle has an INERTIA SWITCH. Not sure of the location. The intertia switch will trip if there has been a collision or a sharp jar to the vehicle, and is designed to shut the fuel pump off.

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Have you check the fuel pump is actually pumping and that the fuel lines are not clogged. if there is a blockage it could be the reason you have no fuel pressure.

Posted on May 21, 2015

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Posted on Jan 02, 2017

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    Ran out of gas, car wouldn't crank replaced fuel pump, fuel relay, and in line fuel filter and still won't crank on 2002 chevy avalanche


    still won't crank ? how's your battery ? starter ? starter solonoid ? if your engine does'nt crank , its dead ! would'nt you check the battery first ? then move on with checking the starter circuit ? seems like your putting the cart before the horse ! first of all, when you run out of gas, you need to replace the FUEL FILTER, your engine just sucked the dirt, garbage, etc., out of the tank. there's plenty of sediment in the tank, don't know how it gets there, but, you'd be surprized ! talking threw experience !!! I operate heavy equipment, its a cardinal sin to run out of fuel !!! you say you replaced the inline filter, which one, up by the engine or the main filter, under vehicle along frame ? are we talking about the same animal, PLEASE CLARIFY !

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    2002 chevy avalanche died at a stop light and now wont start back up. it just cranks.


    Those are known for having the fuel pump go out. Take the gas cap off, open the little steel door with a screwdriver and have someone turn the key forward, not cranking it over, just turn it until all the dash lights come on and see if you can hear the fuel pump kick on for about 2 seconds. You definitely need 2 people to do this. If you can hear the fuel pump then its probally not getting spark.

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    Good afternoon....what would cause my 2008 Chevy


    It could be the power lock motor. You could have a short or bad wiring harness. Might just be a fuse that connects to both. But since you said it's only the driver side. When the power lock motor is bad it can trigger your alarm because they're wired together.

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