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#1 |
Registered User
Join Date: Jan 2010
Location: Oran, IA
Posts: 78
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No turn signals, where to look?
I lost turn signals on my '87 K20 (just got it up and running w/ different engine last week). The fuse is good, I swapped the relay with a known good one, and I have power at the fuse block.
Any thoughts? I don't know of any underhood wires I could've messed up when I swapped the engine that would affect the turn signals. I really don't want to tear into the steering column to replace the switch, been there, done that, it SUCKS.
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'87 GMC K2500 Factory 6.2 Diesel, 4 speed. Converted to 350 (has cracked block) converting back to 6.2 ![]() '82 [COLOR="Sienna"]Cadillac Coupe Deville 350 DIESEL '93 Chev S10 2.8L 5 speed '98 GMC K1500 Z71 ext cab shortbox 6.5 DIESEL '96 Ford F250 7.3 Powerstroke |
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#2 |
6.0 powered square
Join Date: Feb 2008
Location: Mesquite texas
Posts: 3,459
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Re: No turn signals, where to look?
check the junction box on the firewall, or the bulbs are bad
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Aaron 1980 c-10 short bed lowered, cammed 6.0, 4l80e 3600 stall, smp tune, wilwoods, and flames best time so far best et 7.86 @87 on motor 7.57 90 on a 75 shot Build http://67-72chevytrucks.com/vboard/s...d.php?t=283326 |
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#3 | |
Registered User
Join Date: Dec 2008
Location: Yay Area CA
Posts: 2,329
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Re: No turn signals, where to look?
Do your hazard lights work?
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1965 GMC shortwide big window 1969 Chevy C20 long (for now) 2005 Silverado 2500HD Crew Cab Quote:
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#4 |
One shot, one kill.
Join Date: Dec 2007
Location: Saratoga Springs NY
Posts: 859
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Re: No turn signals, where to look?
A quick question, did they work before the swap? Next, like mentioned above, do the 4 way's and brake lights work? Next, apply the 4 way's and step on the brake. Everything (all signal lights outside and dash indicators should light up) Release the 4 way's and keep the brake lights on. Signal left and see if the left rear light goes out, do same for right. All the above will check all the wireing for the signal light circuts EXCEPT B+ to the signal light switch and thats simple to check with a test light at the switch harnace connector. If you have all this, chances are pretty good the switch is bad. If you find a power loss check the fuse links. Hope this helps, Jim
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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 shot ![]() |
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#5 |
Registered User
Join Date: Jan 2010
Location: Oran, IA
Posts: 78
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Re: No turn signals, where to look?
I will check it out. The lights did work before the swap, but I don't remember exactly when they quit.
I don't think my brake lights work, I don't know if they ever did (never really noticed) I'll run through a few of those tests tomorrow night if I have time.
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'87 GMC K2500 Factory 6.2 Diesel, 4 speed. Converted to 350 (has cracked block) converting back to 6.2 ![]() '82 [COLOR="Sienna"]Cadillac Coupe Deville 350 DIESEL '93 Chev S10 2.8L 5 speed '98 GMC K1500 Z71 ext cab shortbox 6.5 DIESEL '96 Ford F250 7.3 Powerstroke |
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