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Old 03-30-2016, 01:36 PM   #1
chazdo2
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1971 chevy signal light problem

I cleaned and re landed every ground I could find. Every time the ignition switch is in the on position the light blue wire for the left turn signal gets hot. I am going crazy any ideas?
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Old 03-30-2016, 02:49 PM   #2
motorcritter
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Re: 1971 chevy signal light problem

Check continuity for the wires to the lamp. Check for a ground in the circuit to the lamp. Plain, old 'get out the testers and multimeters' and spend some time. I chased an inoperative right front turn signal on the '71 Cheyenne, it was a bad socket assembly. It was worth the time spent, though.
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Old 03-30-2016, 08:33 PM   #3
chazdo2
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Re: 1971 chevy signal light problem

I disconnected the back of the fuse box and continuity checked the dark blue and light blue ( left and right signal wires ) wires to ground. Both were polarity sensitive but when cleaned sockets and grounds both were about 2 meg ohms one way and reverse polarity showed open. I guess I have to look inside the truck for a short or the left signal light touching a hot wire? Maybe the signal lever switch?
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Old 03-30-2016, 11:10 PM   #4
Ol red 71
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Re: 1971 chevy signal light problem

Are you running led park lamps? I had the same problem and I had to get two electronic flashers (for the signals and hazards) and reverse the polarity.
__________________
1971 c20 LWB Fleet 2wd
'working' Add-on AC & Working heat/defrost
manual transmission w/ Power steering & power brakes
Family owned since 1971
____________________________________
“Life is rough so you gotta be tough” - Johnny Cash
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Old 03-31-2016, 11:47 AM   #5
chazdo2
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Re: 1971 chevy signal light problem

What I am finding is the light blue wire gets 12 volts every time the ignition switch is turned on. I disconnected the back of the fuse box so the 12 volts is originating on the inside of the truck. I am thinking maybe the steering column directional switch but I cant pull the steering wheel off!
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