Blinker Issues Anyone?
#11
03-13-2010, 05:11 PM
Join Date: Aug 2008
Location: Portland, Or
Posts: 9,097
I hate to disagree, but a bad ground wont allow a path, unless there IS a path between the two feed wires. Since the blinkers are a separate wire, common only to the brake lights, it wouldn't feed back on the lighting system unless there was a wire reversed, a lamp in backwards, or a short. If it could travel through the ground it would take the path of least resistance, and go to the battery.
Now if the problem was shwoing up on everything (lights, flashers, blinkers, headlights, etc) then I would surely suspect a ground issue. All the side marker lights, tail lights, headlights, and running lights have a common feed, and so if one lost it's ground it would try to feed back through all the common others.
Now if the problem was shwoing up on everything (lights, flashers, blinkers, headlights, etc) then I would surely suspect a ground issue. All the side marker lights, tail lights, headlights, and running lights have a common feed, and so if one lost it's ground it would try to feed back through all the common others.
#13
03-14-2010, 03:21 PM
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 18,306
I hate to disagree, but a bad ground wont allow a path, unless there IS a path between the two feed wires. Since the blinkers are a separate wire, common only to the brake lights, it wouldn't feed back on the lighting system unless there was a wire reversed, a lamp in backwards, or a short. If it could travel through the ground it would take the path of least resistance, and go to the battery.
Now if the problem was shwoing up on everything (lights, flashers, blinkers, headlights, etc) then I would surely suspect a ground issue. All the side marker lights, tail lights, headlights, and running lights have a common feed, and so if one lost it's ground it would try to feed back through all the common others.
Now if the problem was shwoing up on everything (lights, flashers, blinkers, headlights, etc) then I would surely suspect a ground issue. All the side marker lights, tail lights, headlights, and running lights have a common feed, and so if one lost it's ground it would try to feed back through all the common others.
I have a 68 camaro and when you turn on the headlights the left blinker light comes on in the dash and stays on. The blinker does not come on outside of the car. However when you turn the left blinker on, the light in the dash blinks accordingly with the outside lights (however it blinks very slow) and then when you shut it off the blinker light in the dash comes back on steady.
Both blinkers work fine other than the left indicator light comming on with the headlights.
Both blinkers work fine other than the left indicator light comming on with the headlights.
So how could a bad ground cause the one blinker light in the dash to go on with the headlights? Glad you asked! When the headlights go on, so do the back lights in the gauges. All the light bulbs in the gauge cluster have one thing in common, they share the same common ground connection on the back of the cluster, so they are interconnected.
I'm not saying it's absolutely positively a bad ground. But I have experienced the same kind of feedback problem more than once before, where it was a ground issue. Also checking for good clean connections between the dash bulbs and cluster wouldn't hurt either.
#14
03-15-2010, 08:12 PM
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