83 Chevy diesel wiring HELP - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sailed2japan · 09-05-2008, 12:13 AM

I just bought a 83 chevy c-20 diesel, brought it home, and relized the wiring is fubar. I need some help with a wiring diagram and some advice on getting the dual tanks and "water in fuel" light working.

thanks in advance.

sailed2japan · 09-09-2008, 08:57 AM

Well, after getting into the truck a a little, I have realized that I'm going to need to rewire about half of it. It is working for now, but I want to get it right.

Any help is highly appreciated.

gchemist · 09-09-2008, 09:52 AM

Hey fellow Austinite!! Check with www.autozone.com for wiring diagrams. Pictures too.

I have a complete 83 factory service manual too. I just need a good copier. Parts are plentiful around Austin too.

sailed2japan · 09-09-2008, 11:39 AM

Thanks for the autozone.com tip. Unfortunately there diagram is good for about half of what I need. It doesn't show anything for a diesel truck.

Russell · 09-09-2008, 11:00 PM

What diesel specific systems need to be re-wired? Should only be the low coolant & water in fuel light circuits, high idle / timing advance circuit and the glow plug circuit. Everything else is fairly common to a gasoline engine.

sailed2japan · 09-10-2008, 12:55 AM

Yup, all that stuff you said, but I am also splicing it to a cummins motor. The dashlights are out and I have 8 or so loose ends under the dash, plus the dual tank wiring ends fust after the switch. This is gonna be one hell of a ride...

gchemist · 09-10-2008, 11:57 AM

I'll scan some pages tonight. E-mail them in the morning. PM your address.

gchemist · 09-11-2008, 03:34 AM

Wow a Cummings? 24 valve motor? Turbo?
HMMMMM, I think your better off borrowing my book. You can make copies of what ever you need.

09-05-2008, 12:13 AM	#1
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	83 Chevy diesel wiring HELP I just bought a 83 chevy c-20 diesel, brought it home, and relized the wiring is fubar. I need some help with a wiring diagram and some advice on getting the dual tanks and "water in fuel" light working. thanks in advance. __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

09-09-2008, 08:57 AM	#2
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: 83 Chevy diesel wiring HELP Well, after getting into the truck a a little, I have realized that I'm going to need to rewire about half of it. It is working for now, but I want to get it right. Any help is highly appreciated. __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

09-09-2008, 09:52 AM	#3
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: 83 Chevy diesel wiring HELP Hey fellow Austinite!! Check with www.autozone.com for wiring diagrams. Pictures too. I have a complete 83 factory service manual too. I just need a good copier. Parts are plentiful around Austin too. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

09-09-2008, 11:39 AM	#4
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: 83 Chevy diesel wiring HELP Thanks for the autozone.com tip. Unfortunately there diagram is good for about half of what I need. It doesn't show anything for a diesel truck. __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

09-09-2008, 11:00 PM	#5
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	Re: 83 Chevy diesel wiring HELP What diesel specific systems need to be re-wired? Should only be the low coolant & water in fuel light circuits, high idle / timing advance circuit and the glow plug circuit. Everything else is fairly common to a gasoline engine. __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)

09-10-2008, 12:55 AM	#6
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: 83 Chevy diesel wiring HELP Yup, all that stuff you said, but I am also splicing it to a cummins motor. The dashlights are out and I have 8 or so loose ends under the dash, plus the dual tank wiring ends fust after the switch. This is gonna be one hell of a ride... __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

09-10-2008, 11:57 AM	#7
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: 83 Chevy diesel wiring HELP I'll scan some pages tonight. E-mail them in the morning. PM your address. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

09-11-2008, 03:34 AM	#8
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: 83 Chevy diesel wiring HELP Wow a Cummings? 24 valve motor? Turbo? HMMMMM, I think your better off borrowing my book. You can make copies of what ever you need. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos



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