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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: 454Man on April 15, 2012, 04:50:36 PM

Title: Ignition power wire?
Post by: 454Man on April 15, 2012, 04:50:36 PM
Does anyone know what wire on the steering column gets power when the ignition key its in its complete forward position? Got the other column on and I still can't start the truck with the key. What gives?
Title: Re: Ignition power wire?
Post by: zieg85 on April 15, 2012, 05:01:36 PM
Check to make sure the neutral safety switch works and is connected.
Title: Re: Ignition power wire?
Post by: 454Man on April 15, 2012, 06:28:57 PM
Ok. I left the column down when I tested the key. The neutral safety switch is connected and it clicks. Is there another way to test it?
Title: Re: Ignition power wire?
Post by: 454Man on April 15, 2012, 06:38:29 PM
Maybe it needs to be adjusted. Ill check
Title: Re: Ignition power wire?
Post by: zieg85 on April 15, 2012, 08:32:06 PM
Ok. I left the column down when I tested the key. The neutral safety switch is connected and it clicks. Is there another way to test it?

With an Ohm meter you should have a closed connection in both Park and Neutral.  It is open all other times.  To test if it is bad, jump the two wire plug with a paper clip...
Title: Re: Ignition power wire?
Post by: 454Man on April 15, 2012, 08:56:33 PM
Ok will do
Title: Re: Ignition power wire?
Post by: 454Man on April 16, 2012, 09:18:09 PM
Ok so just did the checks you suggested with the ohm meter and the paper clip. The switch has resistance but the paper clip trick didn't do anything:( guess I'm chasing electrical grimblins
Title: Re: Ignition power wire?
Post by: 454Man on April 16, 2012, 09:29:41 PM
I'm going to ohm check the fuseable links at the starter and see if they are good
Title: Re: Ignition power wire?
Post by: 454Man on April 16, 2012, 09:38:42 PM
Fuse links are good
Title: Re: Ignition power wire?
Post by: 454Man on April 16, 2012, 09:42:58 PM
If either of the yellow or purple wire are supposed to have voltage when the key is turned foward... they don't. Hope this helps.
Title: Re: Ignition power wire?
Post by: 454Man on April 17, 2012, 08:47:32 AM
Got it:) it was the ( I think) its called) ignition start switch that needed to be adjusted. I took the old one off my other column when I got this one and didn't adjust it. Got it fixed! Thanks!