Turn signal demons - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
LinkBack Thread Tools
post #1 of 3 (permalink) Old 05-08-2015, 12:32 AM Thread Starter
Not Confirmed
 
Join Date: Aug 2008
Posts: 31
Turn signal demons

Hi I'm back lol. I have a 70 maverick with a 302/c4 and am having some electrical issues.

I took out the blinkers up front (under the bumper) and decided to just use the park lamps in the grille as turn signals.

First off Idk how well the front signals worked before I did this. And second of all the lights in the grille look like Walmart amber oval shaped lights (installed by previous owner, two wire hookup)

The polarity is correct and they are plugged into the factory wiring by me splicing the pigtail connector from the stock turn signals.

The issue is, with them installed and plugged in, the lights only flash when the headlight switch is on, and when they do flash, its all 4 lights, and headlights, and dash lights very fast.

With the front signals unplugged everything works normally, I installed resistors designed for led lights (no these are not LEDs but I tried anyways) but no change.

Shouldn't any 12v light work as a park lamp/turn signal, especially since this set and the factory set have only a + and - wire?

I'm going to try again to find the stock set tomorrow in that hellhole I call a shed but in the mean time is there anything else I should look for? Bad ground? Idk thanks for any and all help!
bad68cat is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 05-08-2015, 06:42 AM
Registered User
 
Join Date: Apr 2014
Location: Cherry Hill NJ
Posts: 456
Re: Turn signal demons

Turn signals and brake lights generally need bulbs with two filaments - one for the parking lights and one for the Brake or turn signal function. The socket is different also with two contacts instead of one.

1966 Falcon, 347 stroker and C-4
falconfred is offline  
post #3 of 3 (permalink) Old 05-08-2015, 11:00 AM
Registered User
 
Join Date: Jan 2008
Location: Seattle, WA area
Posts: 10,298
Re: Turn signal demons

Fred is of course correct, and also the stock turn signals ground at the bulb socket. This means both of the wires carry +12V independently, one for park (running/clearance) lights and the other for turn signal, each circuit through it's own filament and grounding at the socket. My suggestion is to arrange the grille lights to function identically to the factory schematic, as shown here: 1970 Maverick

Recap: Park light power to the dim filament, turn signal power to the bright filament, and a good chassis ground for the socket. You will probably need to add a grounding wire to ensure that.

David

PS: To help make some sense of the schematic in some areas - the side marker lights also tie into this system, receiving Park light power and grounding through the turn signal filament to ground. When turn signals are used, then both wires are +12V, causing the marker light to go off. This creates side marker lights that flash alternating with the turn signals. A sneaky but common way to get a small flashing light with only one filament.

-=≡ If it was easy everyone would do it ≡=-
[size=1]HotShotsJava.com Hot Shots Java Coffeehouse, Poulsbo ,WA fair trade and 100% organic. Voted best espresso and coffee![/size]
PSIG is offline  
Sponsored Links
Advertisement
 
Reply

Tags
blinker , ground , lights , maverick , turn signal

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Muscle Forums : Ford Muscle Cars Tech Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Turn signal arm car guy Galaxie Pages 12 06-22-2012 06:44 PM
Turn signal David L Falcon Pages 4 04-28-2010 11:00 PM
Turn signal diagram Help!!!! insane1 Galaxie Pages 4 11-08-2008 09:02 PM
turn signal housing maverick5oh Fairlane Pages 4 01-13-2008 08:25 AM
turn signal flasher 63boxtop Galaxie Pages 1 09-06-2005 01:42 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome