06" Silverado Turns Over But Won't Start. HELP !!!

Discussion in 'General Chevy & GM Tech Questions' started by scotsraven, Aug 6, 2013.

  1. scotsraven

    scotsraven New Member

    Hey I'm Raven and I'm new to this forum. I have a beautiful 2006 Chevy Silverado with a 4.3 V6 and Cadillac wheels. Last Saturday I pulled out of my driveway and headed down the road. within a few minutes the truck lost power and died. After this happened it would turn over, (Slowly at first then it would crank faster after a few seconds and holding the pedal to the floor) but it would not start. I checked it with an ODB device and got the codes P0500 and P0507. I already knew it had a faulty vehicle speed sensor, but the only problem I had noticed from that is that it would die sometimes as i shifted into 1st or 2nd as I slowed to stop the truck. It would restart every time. I replaced the sensor, but the plug was broken so It's been ordered. The truck ran without it before this happened. Anyway, I tried shooting starting fluid in the intake as the engine was turned with no results. This is my work and everyday vehicle so any help would be greatly appreciated. Thanks, Raven.:money:
  2. RayVoy

    RayVoy Epic Member 5+ Years 5000 Posts

    Well, my 1st though was bad fuel pump, but it should start if starting fluid in the tb (won't run very long, but it should start).

    Do you have spark? Pull off a plug wire. Do you have a spare plug? If not, remove a spark plug. Plug the wire onto the spare/removed plug. Now we need a ground, I like to use a battery jumper cable, pick one wire (the red, or the black) and clip the cable to the threads of the plug, clip the other end of the same jumper wire to a good ground. Crank the engine. Do you see/hear a spark jumping across the plug?

    Do you have air? Check for a plugged air filter.
  3. TimTom64b

    TimTom64b Epic Member 5+ Years 500 Posts ROTM Winner

    My guess would be the ignition control module... they can test these at your auto parts store.

    99'HEARTBEAT MODERATOR Staff Member 5+ Years ROTM Winner 1000 Posts Platinum Contributor

    A Code P0507 is sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle.

    Some of the Items to take a look at, that could trigger this Code P0507, are the following:
    * A Vacuum leak
    * Leaking Air Intake after the Throttle Body
    * EGR Valve Leaking Vacuum
    * A Faulty Positive Crankcase Ventilation (PCV) Valve
    * Damaged/Failed/Dirty Throttle Body
    * Failed EVAP system
    * Failed IAC (idle air controller) or Faulty IAC Circuit
  5. scotsraven

    scotsraven New Member

    Thanks, RayVoy. I'm off this weekend so I will try the spark plug check and i will look for a plugged air filter.

    - - - Updated - - -

    [FONT=arial, helvetica, sans-serif]To TimTom64b. Can you tell me where the ignition control module is located on my Silverado? I can take it off and take it to my local parts store. Thanks for replying to my post, and I'll give you an update this weekend after I've removed it and had it checked out.[/FONT]
  6. BurbanMan

    BurbanMan Rockstar 3 Years 500 Posts

    Lack of spark is definitely the issue. Unless your running the oe air filter at 300,xxxmi lol
  7. scotsraven

    scotsraven New Member

    To '99HEARTBEAT. any specific one you would recommend starting with? I've heard about the dirty throttle body situation and I can clean it this weekend. Thanks for replying so quickly to my post. Raven.

    - - - Updated - - -

    You know I really love the truck. She's quite a head turner with the Caddy wheel and plain chromed center caps. I've had a lot of complements about the wheels changing the entire look of the Silverado. I'll tell you a short story on the wheels. I do HVAC work for myself. while working in an upscale gated community, I was approached by the neighbor of the home I was working on. He told me his A/C was out, and could I take a look at it. so when I checked it out, I found a burnt common wire and a bad fuse. $100 dollar repair. he had the Caddy wheels with almost new tires. He told me he would trade the work for the wheels. I told him I couldn't do that as it was really an unfair trade. He told me he had just emptied the check book putting huge wheels and tires on his Caddy and had no money. He said if that A/C was not working when his wife got home that she would strangle him and make him take his "new toys" back to the parts house. I fixed the unit in about 10 minutes and he even loaded the wheels into the back of my truck, smiling and happy as he could be. I call him to check on his satisfaction with the repair from time to time. He's already had me back out to do electrical repairs on his million dollar plus home, but he pays cash because he has no more parts to trade! I guess the rich really are different after all, but I sure got a nice set of rims out of the deal.

    - - - Updated - - -

    Thanks BurbanMan. My brother in law seems to think its the timing chain by the way it turns over slowly at first then it turns faster after only a few seconds. I hope it's not. A lot of time is going to be spent changing it out if it is.

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