2003 GMC Yukon Denali Logo
Posted on Dec 23, 2013

2003 gmc denali won't start

Won't start. I turned the key and it clicked and no power ni lights no blinking security light. checked IGN fuses and then tried to start vehicle and notice that radio back light came on and when I tried to crank nothing. no power, no lights nothing

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My 2003 Denali won't start I turn the key and just get a fast clicking noise good battery new starter and all power works

Where's the clicking noise coming from ? Under the dash , under the hood in the engine compartment ? Do starter circuit voltage drop test ! When the key is in start position is there constant B+ voltage at the 10 amp crank fuse in the under hood fuse box ? This is an input to the PCM - engine computer to energize the starter relay ! Starter Voltage Drop The battery is good , starter is new ,what about the cables ? watch this video on testing starter circuit !
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Are you getting power to the starter terminal from the key switch when you turn the key to start ?
Have you tried cranking it in neutral instead of park ?
If the security light goes off it should be working correctly.
You could try a spare key to see if the chip in the key is the problem.
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2009 HHR won't start. Battery is good.

Is the security light on or blinking?If not then do you have power to the starter.You can check this with a test light.You should have power when you turn the key to start.The test light should light up.Should be the small wire.I believe it is purple in color.If the security light is on then you will have to get the codes to see what is causing the no start.Hope this helps.Good luck.
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I have a 2000 GMC Denali. I had the battery unhooked for about a week, because there is a draw on the battery somewhere. I then rehooked it up and now it won't start. When you get in the truck the...

I have the same problem few days ago and found my solution on Fixya Expert Sources website. Here you will get all the top sources of your problem. All the sources of this site provided by top Fixya Gurus. Have a good look at the sources of the page. Go through the sources to find your solution. Hope it will help.


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put key in turn switch forward find your valet switch for alarm should be a button press it twice or the button might be your alarm blinking light, press.
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try ignition with key in and turn to number 2 and press fob button if the doors lock its worked, it f not you need to remove the battery negative and turn ignition on and lights and leave on for a few moments then turn all off again, then fit battery and do the first part again. hope this helps you.
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