Ignition switch problems - S-10 Forum
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Ignition switch problems

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Old 02-01-2010, 05:34 PM   #1
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Ignition switch problems

Maybe someone here has had this happen. When turning the switch from lock one click to unlock, the batt. light comes on and the odometer lights up ( I believe on unlock-nothing should light up). Then when going to the run position, the radio and fan works but the fuel gauge and voltmeter are dead. When going to start, nothing happens. All fuses checked good. This is a 2001 extreme 4cyl. manual. Any ideas? thanks ahead of time. Mike
Old 02-01-2010, 10:00 PM   #2
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Re: Ignition switch problems

Weak battery, poor battery connections, broken starter, clutch interlock switch, clutch not pushed down (that last one's kinda dumb)
Old 02-02-2010, 09:47 AM   #3
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Re: Ignition switch problems

Thanks for your time and thought. New battery, battery conections tight, "new" rebuilt starter just installed, need to check clutch switch as the clutch master cylinder was just replace and maybe something got jarred. I will remove the underneath cover and look for any loose wires.

But why would the battery light and odometer come on if the key was moved from off/lock to off/unlock? Sure appears to be switch problem. I did download from here what appears to be the factory procedure to R&R the ignition switch.
Old 02-02-2010, 01:46 PM   #4
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Re: Ignition switch problems

If you had this problem right after changing the ignition switch, then it's likely some problem with the installation. I think that first switch position is "acc", and the radio should work, the second is "on" and the fuel pump should prime and dash will come on and all electric stuff will work, then there's "start".
Is there an adjustment?
Old 02-03-2010, 01:44 PM   #5
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Re: Ignition switch problems

I never changed the ignition switch. The first position foward of lock/off is unlock, and it allows the wheel to turn. The only position back from lock/off is acces.. Again it is a 2001 extreme and were have a owners manual from a 2001 sonoma. We are using after market cut keys with no resisitoror transponder. I did notice in the GMC manual that the ignition needed the correct coded key. I wonder if that was a option on the 2001 chevys. This problem just started after my son lost his last remaining factory key. But the vehicle has worked fine with the aftermarket keys before.
Old 02-03-2010, 02:00 PM   #6
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Re: Ignition switch problems

the keys are no coded...no s-series was...the code is built into the ignition switch

but it can be the switch .. i have replace a few...did a pontiac grand prix the other day...it was also a 2001
Old 02-03-2010, 08:45 PM   #7
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Re: Ignition switch problems

i had a wierd problem w/my switch.turned off night b4 andin the am the interior lights were still on tried to turn on and it jammed could hardly turn off so i sprayed it with wd40 about a yr ago and it's worked fine since you should try it just for kicks.
Old 02-08-2010, 05:54 PM   #8
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Re: Ignition switch problems 2001

Can anyone tell me if the ignition switch on a 2001 s10 is located under the steering wheel column? I have the procedure for the 1995 to 99 models but the switch appears to be under the colum instead on top. Thanks ahead of time
Old 02-10-2010, 01:26 PM   #9
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Re: Ignition switch problems

Quote: Originally Posted by A CLEANMACHINE
i had a wierd problem w/my switch.turned off night b4 andin the am the interior lights were still on tried to turn on and it jammed could hardly turn off so i sprayed it with wd40 about a yr ago and it's worked fine since you should try it just for kicks.
probably not a good idea with wd-40 near electrical parts, maybe some lectra clean from CRC? Might be a safer choice, i'm not an electrical guru though
Old 02-14-2010, 02:02 PM   #10
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Re: Ignition switch is NOT the problem

OK, we swapped the switch and nothing changed! Again, when moving from lock/off to unlock, the batt. light and odometer lights up. When going to on, the radio and fan come on but no idiot lights come on,guages are dead and no fuel pump. Then when going to start, the starter does not work but the lights turn off.
Old 09-11-2013, 11:57 AM   #11
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Re: Ignition switch problems

Hello i have the same problem on my 2001 S-15 What was the fix?
Old 09-11-2013, 01:31 PM   #12
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Re: Ignition switch problems

Test the starter relay.
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