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Username Post: Weird LED turn signal issue...        (Topic#358294)
bluesfella 
Senior Member
Posts: 875
bluesfella
Loc: Tallahassee FL
Reg: 04-07-03
10-02-19 05:26 PM - Post#2776944    

I put LED tail light bulbs in my '55 - the (1157?) drop-in kind. They are nice and bright. But since the turn signals didn't flash at first, I put an LED flasher in, and thought I was good. But I've noticed a problem:

With the lights on, the turn signals work fine.

With the light off AND the brake lights on (I'm pushing the brake pedal down), the turn signals work fine.

With the lights off, and I'm NOT pushing the brake pedal, the turn signals flash BOTH sides. Either side will do the same thing, flashing both turn signals.

How the heck do I fix that so it will work as designed?



 


acardon 
Ultra Senior Member
Posts: 11298
acardon
Loc: DFW TEXAS
Reg: 03-25-05
10-02-19 06:22 PM - Post#2776946    
    In response to bluesfella

Do the dash turn indicators both flash also? Does the flasher have a ground wire and is it grounded good?

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
bluesfella 
Senior Member
Posts: 875
bluesfella
Loc: Tallahassee FL
Reg: 04-07-03
10-02-19 08:10 PM - Post#2776957    
    In response to acardon

No, the dash indicators show what the turn signals should be doing, only one blinking at a time.

The new flasher was a plug-in replacement. I didn't add any wires to it.



 
bluesfella 
Senior Member
Posts: 875
bluesfella
Loc: Tallahassee FL
Reg: 04-07-03
10-03-19 05:54 AM - Post#2776979    
    In response to bluesfella

AND, the weird thing is that the front turn signals operate as they should. They aren't LED though.



 
acardon 
Ultra Senior Member
Posts: 11298
acardon
Loc: DFW TEXAS
Reg: 03-25-05
10-03-19 07:08 AM - Post#2776985    
    In response to bluesfella

Check that the tail light housings are grounded good to the body (screws tight). What's the part # of the flasher?

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
bluesfella 
Senior Member
Posts: 875
bluesfella
Loc: Tallahassee FL
Reg: 04-07-03
10-03-19 11:16 AM - Post#2777002    
    In response to acardon

I bought THIS ONE from ebay (Johnnylawmotors).

Here's the stats:

Reference part number: JLM1817690

No-Load LED Tail Light Flasher for Painless Wiring Harness car 12v DC hot rods from Johnny Law Motors...

Body Material :: Plastic
Input Pin :: .250
Output Pin :: .250
of Pins :: 2
Bulbs :: Incandescent or LED
Socket Type :: OEM
Max Lamps :: 10 1156
Volts :: 11V- 15V Normal DC
Flash Speed :: 1.5 Sec or less for 1st Flash
Voltage Drop :: 800 mv at Max Load
Flasher Per Minute :: 60-120
Duty Cycle :: 35% -75%
Feature :: -
Feature :: Fits Factory Socket
Feature :: Plug and Play



 
498 chevy 
"11th Year" Platinum Supporting Member
Posts: 474
498 chevy
Age: 68
Loc: hayward ca.
Reg: 09-28-07
10-03-19 01:25 PM - Post#2777007    
    In response to bluesfella

Thanks for posting this problem. I've put led lights in my 4 dr but not the point of having juice to them. Very interested in why this happened.

http://www.picturetrail.com/webe


 
niftyfive 
Member
Posts: 183

Loc: Durango, Colorado
Reg: 02-07-05
10-06-19 08:36 PM - Post#2777229    
    In response to 498 chevy

I would reinstall the original filament bulbs and ck their operation. The specs on that flasher say its good for incandescent or led. This will confirm or negate that you have a wiring or bulb contact issue.
Jim

NIFTYFIVE


 


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