Brake Light, and Turn Signal "Troubleshooting" - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SRH916 · 03-17-2008, 08:17 AM

On my 75 C-10 the brake light, and turn signal ONLY on the drivers side aren't working. Sometimes they work, but most of the time (like 90%) they don't work. I'm not sure how to describe it, so ask me questions as needed. I have no idea where to start looking, and would like to get my truck road "legal" ASAP.

Thanks in advance,

Jared

James McClure · 03-18-2008, 02:03 AM

Most likely is wireing in the rear especially if you have a trailer connection made there. Look for corrosion (green deposits). If you find green, fix it. Make sure you cut the wireing back far enough to eliminate any traces and when you reconnect either solder and use shrink tubeing or use heat shrink crimp connecrtors.

f.monroe · 03-18-2008, 03:20 AM

There is also a ground that is under the taillight housing . Take the tail light cover off and then remove the housing . There is a ground under it . I think that the trailer connection would be the first thing I would check , followed by grounds , followed by changing the light socket itself . I have seen the socket gop bad before . Frank

Curly86 · 03-19-2008, 02:38 PM

I don't know if the 75 has the same plug in on top of the steering column as my 86 if it does you might want to check that plug in at the top of the column just behind where it mounts to the bottom of the dash. check to see if you have a short there. That's where my ts and bl problem as

03-17-2008, 08:17 AM	#1
SRH916 1975 C-10 Silverado LWB Join Date: Nov 2007 Location: Sacramento, CA Posts: 326	Brake Light, and Turn Signal "Troubleshooting" On my 75 C-10 the brake light, and turn signal ONLY on the drivers side aren't working. Sometimes they work, but most of the time (like 90%) they don't work. I'm not sure how to describe it, so ask me questions as needed. I have no idea where to start looking, and would like to get my truck road "legal" ASAP. Thanks in advance, Jared __________________ 1975 LWB C-10 Silverado - Stock - "BIG 10" - 4 Bolt 350 "Brand new" 1200mi - THM-375 "Brand new w/trans cooler" 5000mi 1995 Ford Lightning - Bone Stock - 351W - Vortech??

03-18-2008, 02:03 AM	#2
James McClure One shot, one kill. Join Date: Dec 2007 Location: Saratoga Springs NY Posts: 859	Re: Brake Light, and Turn Signal "Troubleshooting" Most likely is wireing in the rear especially if you have a trailer connection made there. Look for corrosion (green deposits). If you find green, fix it. Make sure you cut the wireing back far enough to eliminate any traces and when you reconnect either solder and use shrink tubeing or use heat shrink crimp connecrtors. __________________ 1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shotJim or Paladin whichever you choose.

03-18-2008, 03:20 AM	#3
f.monroe Senior Member Join Date: May 2004 Location: Caldwell,Tx. Posts: 3,648	Re: Brake Light, and Turn Signal "Troubleshooting" There is also a ground that is under the taillight housing . Take the tail light cover off and then remove the housing . There is a ground under it . I think that the trailer connection would be the first thing I would check , followed by grounds , followed by changing the light socket itself . I have seen the socket gop bad before . Frank __________________ Born and proudly residing in a Red State !

03-19-2008, 02:38 PM	#4
Curly86 You want it there when??? Join Date: Oct 2006 Location: Lewisburg Ky Posts: 393	Re: Brake Light, and Turn Signal "Troubleshooting" I don't know if the 75 has the same plug in on top of the steering column as my 86 if it does you might want to check that plug in at the top of the column just behind where it mounts to the bottom of the dash. check to see if you have a short there. That's where my ts and bl problem as __________________ 1986 Silverado Flatbed 400 SB with 350 turbo 1997 Ford Explorer with 302 mydrive to work ride 1978 Gmc Midas RV 21ft with 46,000 actual miles 2003 Chevy Avalanche 5.3 327 and Tweety Bird Yellow Big Sandy Survivor 09 Trucks in the Blue Grass Survivor 09 TNCTC Streetcruzin



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