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Username Post: 1978 c20 pickup wiring help        (Topic#356154)
Chevyc202019 
Poster
Posts: 2

Reg: 04-24-19
04-25-19 06:39 AM - Post#2764993    

So I recently got a 1978 Chevy c20 pickup L25 inline 6. And somebody has mess with all the wiring.the key switch was bad I guess and somebody decided instead of buying a new one they would just run a push button starter from the battery and the solenoid bypassing the rest of the wiring system.I was wondering if anybody had the original wiring diagrams or could get me pictures of theirs or somebody else's wiring so I could see which wire coming from the steering column I need to follow to figure out where to splice in a wire to go to the starter solenoid.



 
100 CHEVY 
Dedicated Member
Posts: 6499
100 CHEVY
Loc: Helena,Missippi,U.S.A.
Reg: 12-09-04
04-25-19 06:48 AM - Post#2764995    
    In response to Chevyc202019

Welcome to Chevy Talk!
Someone probably had trouble with the ignition mechanism under the column and decided to by-pass it.
If you can find a Hayne's manual for your year truck,it will have the wiring diagrams.
Should be able to find one on-line.
And,very useful for the whole truck!
Mike.

"You gonna leave it like that?
http://www.picturetrail.com/100chevy


 
Liberty Valance 
Contributor
Posts: 116
Liberty Valance
Loc: Euless,Texas
Reg: 07-21-14
04-25-19 07:11 AM - Post#2765000    
    In response to Chevyc202019

Welcome

1974 Cheyenne 10 LWB 350/TH350/AC/4 BBL Quadrajet
Mopar by Birth
Chevy by Choice


 
gchemist 
Senior Chevytalk Moderator
Posts: 24930
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
04-25-19 10:49 AM - Post#2765013    
    In response to Liberty Valance

Welcome to the site.
Go here for wiring diagrams. All years are available.
http://forum.73-87chevytrucks.com/smforum/index.ph...

Check the neutral safety switch too. It's located under the dash on the steering column. If it's out out of adjustment, it won't crank.

'83 Silverardo XST - ZZ4 powered
'95 Jimmy SLT (Bought @131,814)
'96 GMC Jimmy LS Ret. @236651 miles


 
Chevyc202019 
Poster
Posts: 2

Reg: 04-24-19
04-25-19 11:59 AM - Post#2765014    
    In response to gchemist

Okay thank you. I've replaced the key switch already but now I need to figure out where I need to wire the starter up again because they have totally taken those wires out.



 
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