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05-28-2007, 09:46 PM
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#1 |
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Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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wiring problem?
hey guys gota few questions for ya. i have a 67 lwb 250 six 3 speed, your typical 67 no frills didnt even come with a radio. anyways this has been my daily driver for the last 3-4 years . been a great truck really no problems. anyways i will get to the point. was driving home the other night and noticed i didnt have any brake lights or turn signals. so i limped her home and the next morning i went out and the turn sgnal fuse was blown as the dome-stop fuse. so i replaced both and the both blew right away? things were smoking . well i got it handled and there were like 5 wires that were badly burned coming from the fuse box. the actually melted the fuse box. anyways i had a harness i saved out of a 72 350 350 . so i decided to use that harness . got all the under dash stuff hooked up heater,blower motor. wipers ,ect,ect and . it appeared the i was one the right track. remounted the outside harness to the inside looks the same . isnt it. now i have no ignition no dash lights nothing works but the heater and the wipers?. oh and the turn signals are inop and the brake lights.? its exactly like it was/but worse. are the harnesses that different? am i missing something? any help would be greatly appreciated. any direction would help/ thanks in advance tony
Last edited by bad6772; 05-28-2007 at 09:49 PM. |
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05-28-2007, 10:41 PM
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#2 |
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Zappaphile!
Join Date: Apr 2007
Location: Los Banos, California
Posts: 228
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Re: wiring problem?
Looks like it's time to start looking at the turn signal switch. Most of your lights come through that switch..
I just replaced mine, and solved a lot of lights related problems (brake lights, turn signals, markers and dash lights all came back). Don't take what I say as gospel though, I was still dumb enough to not notice the turn signal relay was broke on mine... Good luck
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1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son |
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05-28-2007, 10:53 PM
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#3 |
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Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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Re: wiring problem?
and i jsut need to go remove the steering wheel. you can feed the harness out right? to just replace the switch? and any ideas on the ignition problem? i am thinking i need to . use the front harness off the 72 harness.? would the v8 automatic harness be that differnt form the I-6? i was jsut out there and it looks as if the ignition wires are a row up from my original to the 72 . is it possible just to move the connectors( i e ) the pin connectors? down one?
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05-28-2007, 11:11 PM
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#4 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: wiring problem?
For the ing part look under your dash near steering column for a large purple wire that is on a plug ( purple in, purple out). Connect this with a jumper wire from one side to the other. Should now be able to crank engine. Look for your short that caused your problems in the wires that run to dome light in the door opening under the mat holder 1st. If the new harness came from a gauge dash, yes you can switch wires in the harness plug that plugs into the dash. Will try to look up the change over diagram for you.
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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05-28-2007, 11:28 PM
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#5 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: wiring problem?
Here you go-scroll down:
http://www.gmcpauls.com/Tech%20Tips1.htm
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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05-28-2007, 11:58 PM
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#6 |
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Scrapper 1
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
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Re: wiring problem?
All i say is go get the fuse box and all the wiring under dash and engine harness and rear tail light harness cast about 600.00 but you will never have a wire problem again unless you go hacking on it and get the 1968 harness but i say go and get the 1972 harness cus of all the up dates and other options that where offered if you want them if not at least its there
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05-28-2007, 11:59 PM
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#7 |
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Scrapper 1
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
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Re: wiring problem?
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05-29-2007, 07:04 PM
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#8 |
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Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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Re: wiring problem?
thanks guys . i got a new ac delco turn signal switch today. and it looks like i am going to just run the 72 harness to the engine. it is in really good shape and has a lot of extra stuff like a/c and i defantily am going to run air soon. / but not seem seem worried ,but going to the 72 harness would be the way to go right?
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05-30-2007, 06:44 PM
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#9 |
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Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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Re: wiring problem?
bump
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06-02-2007, 09:26 PM
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#10 |
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Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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Re: wiring problem?
well got all the wiring figured out today. i would like to personaly thank lbpd719. he walked me through the whole process. im glad i got back on this site after so many years of being away. lbpd719 not only answered all my questions but was kind enuff to let me bug him on the phone. turns out lbpd719 that the 72 ignition switch wasnt a 72 . luckly a buddy of mine had one so swapped it out and she purrs like a kitten again. thanks alot tony
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06-03-2007, 06:39 PM
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#11 |
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Zappaphile!
Join Date: Apr 2007
Location: Los Banos, California
Posts: 228
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Re: wiring problem?
glad to hear you got it going the rest of the way..
Goodluck, and feel free to call me anytime..
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1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son |
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