Re: 2009 gmc envoy won't start, battery is good key is...
Hello did you checked the security system for your car Because the new cars have anti-thief system check it with your car company. i am sure it might help. Please rate my comment thanks
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Envoy ignition switches are known for having intermittent problems and causing strange indications in the truck. Have the ignition switch changed and I'm pretty sure your problems will be solved.
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.
make sure battery is 12.6 volts. if not you not going to be able to get transmission go all the way in park to remove ignition key.when you press brake pedal it energize brake transmission shift interlock to get transmission all way in park to remove ignition key.if all is good battery is 12.6 volts.sound like ignition switch lock cylinder broken more likely.
Hello and welcome to FixYa!
As a first course of action, I strongly suggest that you spray WD40 on the ignition switch. This will help loosen the gearing, by then you can remove the key.
Hope this helps and thank you for using FixYa! Have a good one!
Hey. Your problem look to be a battery concert.
if you are sure of the battery is Ok.
Remove the Battery terminal inspect and clean.
And put back the teminals. Tight a little hard.
because one of the problems on this kind if vehicles are the battery conncetions. That came in misscontact.
After all of this . Check all the fuses Include the MEGA FUSES.
Replace as need. with the same rating.
Check the Red wire going to the fuse block. If is nessesary
Go to the autopart and buy a test light.
OK.... I hope this can be a start prosses to fix your car.
If your 2002 gmc envoy or sierra will not even turn over with a kown good battery try starting it in nuetral then go back to park and try starting again. There is a park nuetral safety switch that can malfunction. Turn the key on then shift into nuetral, then turn fully to start.
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