C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

crazy turn signals

Thread Tools
 
Search this Thread
 
Old Jul 30, 2011 | 08:34 AM
  #1  
texaswilkins's Avatar
texaswilkins
Thread Starter
Drifting
15 Year Member
 
Joined: Sep 2004
Posts: 1,270
Likes: 4
From: Celeste Texas
Default crazy turn signals

My left side turn signals dont work. My emergency flashers and right side turn signals work just fine. All bulbs around the car flash like they should. Any ideas?

Sometimes old cars are a real PITA.

Bill
Reply
Old Jul 30, 2011 | 10:13 AM
  #2  
wgarneau's Avatar
wgarneau
Pro
 
Joined: Jul 2011
Posts: 511
Likes: 0
Default

My flashers work..fine...until..they..stop.



Then after a second or two they work again...

Very odd - not sure what to think about it. I figure I'll change the bulbs first and then the fuse but I don't think it's the bulbs or the fuse. If it was I'd think they wouldn't blink at all.

It's the 'odd' behavior that gets one scratching their heads - unless someone else has seen the same behavior and has an idea what to look for.
Reply
Old Jul 30, 2011 | 11:34 AM
  #3  
joshtried's Avatar
joshtried
Burning Brakes
15 Year Member
 
Joined: Mar 2008
Posts: 1,038
Likes: 39
From: Denver, CO
St. Jude Donor '08-'09-'10
Default

i had trouble with the round blinker fuse not making contact properly in the fuse block. if my blinker wouldnt blink, id "nudge" the fuse with my foot, and it would start right up...
Reply
Old Jul 30, 2011 | 12:48 PM
  #4  
Steve2147's Avatar
Steve2147
Pro
 
Joined: May 2011
Posts: 581
Likes: 5
From: BC
Default

Originally Posted by joshtried
i had trouble with the round blinker fuse not making contact properly in the fuse block. if my blinker wouldnt blink, id "nudge" the fuse with my foot, and it would start right up...
The round blinker fuse is not a fuse. That's the flasher. It interrupts the power on the supply side to the turnsignal switch, so if one side works but the other doesn't, it's not the flasher.

If the frt and rear turn signal filament light but don't flash on the left side check for proper bulbs. You may have a variable load flasher in the 4 ways which will flash at a regulated frequency regardless of load and a load specific flasher in the turn signal which will not flash if there is insufficient draw.

If they don't light at all on the lt side it is most likely turn signal switch or wiring to the switch.

When you have the left turn signal on what does the lt side brake light do when you step on the pedal? This will also help identify the problem as in the switch. The switch takes the brake light out of the circuit when that turn is activated.

Steve g
Reply
Old Jul 30, 2011 | 01:39 PM
  #5  
wgarneau's Avatar
wgarneau
Pro
 
Joined: Jul 2011
Posts: 511
Likes: 0
Default

Originally Posted by Steve2147
The round blinker fuse is not a fuse. That's the flasher. It interrupts the power on the supply side to the turnsignal switch, so if one side works but the other doesn't, it's not the flasher.

If the frt and rear turn signal filament light but don't flash on the left side check for proper bulbs. You may have a variable load flasher in the 4 ways which will flash at a regulated frequency regardless of load and a load specific flasher in the turn signal which will not flash if there is insufficient draw.

If they don't light at all on the lt side it is most likely turn signal switch or wiring to the switch.

When you have the left turn signal on what does the lt side brake light do when you step on the pedal? This will also help identify the problem as in the switch. The switch takes the brake light out of the circuit when that turn is activated.

Steve g
Is the round 'flasher' what I need to replace if my turn signals pause periodically?
Reply
Old Jul 30, 2011 | 01:55 PM
  #6  
texaswilkins's Avatar
texaswilkins
Thread Starter
Drifting
15 Year Member
 
Joined: Sep 2004
Posts: 1,270
Likes: 4
From: Celeste Texas
Default

There's a wire missing from the left rear light housing. Should be three wires but I only have two and a hole. Now I have to let it cool off so I can get my hands up in around my mufflers and find it.

Bill
Reply
Old Jul 30, 2011 | 03:49 PM
  #7  
Steve2147's Avatar
Steve2147
Pro
 
Joined: May 2011
Posts: 581
Likes: 5
From: BC
Default

Originally Posted by wgarneau
Is the round 'flasher' what I need to replace if my turn signals pause periodically?
May or may not be. If you have an original style flasher (very light weight, anodized aluminum shell) it is a load dependent flasher. These were designed for the specific car they went in based on the number of bulbs that it was required to flash (one front and two rear per side let's say). If any one of the bulbs burnt out there would be insufficient load to cycle the flasher and the lights would come on but not flash. This was a design feature to let the driver know he had a bulb burnt out. And if you plugged a trailer light harness into the system (adding bulbs or load) the flasher would cycle far too fast.

Long storey short, you could have a bulb that's burnt where the broken filament periodically makes contact and the bulb works intermittently. Not at all uncommon for bulbs to behave that way when they fail. This will cause the lights to flash only intermittently.

If you have a variable load flasher (much heavier in weight and usually in a clear plastic housing where you can see a relay coil) it is most likely the flasher because it will always flash at the same speed regardless of how many bulbs are working.

Steve g
Reply

Get notified of new replies

To crazy turn signals





All times are GMT -4. The time now is 10:20 AM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE