Front turn signal
Thread Starter
2nd Gear
Joined: Feb 2025
Posts: 2
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From: Inman SC
Front turn signal
Need help. Have dash out on both sides of my 73 corvette. Replaced heater core, vacuum hoses for lights and replaced panel bulbs with bright leds. When I went to check all light functions I ran into... front turn signals don't flash when I pull on lights. I know GM had the side light, turn light alternate flash, but front turns don't flash while side lights stay on.
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From: north of Chicago
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Need help. Have dash out on both sides of my 73 corvette. Replaced heater core, vacuum hoses for lights and replaced panel bulbs with bright leds. When I went to check all light functions I ran into... front turn signals don't flash when I pull on lights. I know GM had the side light, turn light alternate flash, but front turns don't flash while side lights stay on.
If so that's your problem. Might try a electronic flasher relay but I have had no luck with Led dash lights on my '74, I do have all exterior lights converted to LED and I have changed both the emergency flasher and the turn signal flasher to electronic and the emergency need reverse polarity
Pro
Joined: Nov 2023
Posts: 703
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From: Aubrey TX
Need help. Have dash out on both sides of my 73 corvette. Replaced heater core, vacuum hoses for lights and replaced panel bulbs with bright leds. When I went to check all light functions I ran into... front turn signals don't flash when I pull on lights. I know GM had the side light, turn light alternate flash, but front turns don't flash while side lights stay on.
Race Director
Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
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Cruise-In VIII Veteran
Take the LED's out and put incandescent bulbs back in..
Melting Slicks
Joined: Feb 2018
Posts: 2,328
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From: Marietta GA
Bulbs located in the front turn signals will not work EVEN with an electronic flasher. The reason is because the side light blinks opposite the front turn signal. You can use green led for the dash / speedometer indicators, (make sure they are not Polarity Sensitive).
Advanced
Joined: Jan 2020
Posts: 81
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From: California
2022 C3 of the Year Finalist - Modified
Here’s a thread that will help and includes the easiest fix.
https://www.corvetteforum.com/forums...al-issues.html
https://www.corvetteforum.com/forums...al-issues.html
Race Director
Joined: Jun 2020
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From: north of Chicago
2025 C2 of the Year ('64-'66) Finalist - Unmodified
2025 C3 of the Year Finalist - Modified
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2022 C4 of the Year Finalist - Modified
2022 C3 of the Year Finalist - Modified
2021 C7 of the Year Winner -- Modified
2020 C4 of the Year Finalist - Modified
Bulbs located in the front turn signals will not work EVEN with an electronic flasher. The reason is because the side light blinks opposite the front turn signal. You can use green led for the dash / speedometer indicators, (make sure they are not Polarity Sensitive).
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
I'm guessing that your (turn signal) flasher module is shot. It is in a clip on the backside (near the bottom) of the passenger side dash pad. The flasher in the fuse panel is for the 4-way flashers.
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