Installing new bulbs ?
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From: SE Pennsylvania
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Oldtimer
Installing new bulbs ?
I've got a burnt out bulb in the rear 3157 and after looking at them, is there a right way and a wrong way to install them ? there's just four wires & tow filaments how do I know I have the in the right way ? Thank you !
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Just turn the lights on to check it before putting everything back together.
Drifting
Joined: Feb 2005
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That bulb is designed to be inserting into the socket either way, so there's no right way and wrong way. That person who said it didn't work the first time he tried probably didn't have it seated properly in the socket.
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From: SE Pennsylvania
St. Jude Donor '03 thru '26
Oldtimer
OK, So I 'm thinking. . .
The bulbs have a large filament and a smaller one, I'm just guessing here, the small is on constantly when driving at night, and only when you step on the brake pedal does the wider or larger filament light up ?
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From: Dear Karma, I have a list of people you missed.
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On the rear bulbs, the small filament is for tail lights and the large filament is for both stop lights, and turn signals.
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From: Dear Karma, I have a list of people you missed.
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Midyear owners need 6.
One to remove left tail light lens screw,
One to remove right tail light lens screw,
One to remove the lens,
One to remove the old bulb,
One to hold new bulb steady at correct height and,
One to back car up into bulb.
One to remove left tail light lens screw,
One to remove right tail light lens screw,
One to remove the lens,
One to remove the old bulb,
One to hold new bulb steady at correct height and,
One to back car up into bulb.
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I am a bit confused, How can that be when you have running lights and brake lights? Wouldn't the brake wire have to go to the brake filament?
Please explain to me how this works.
Thank You.
After looking at the bulb I see where it is possible, I didn't know the bulb had 4 wires going to it.
Please explain to me how this works.
Thank You.
After looking at the bulb I see where it is possible, I didn't know the bulb had 4 wires going to it.
Last edited by Mr.Bill; Sep 21, 2014 at 10:23 AM.
Racer
Joined: May 2013
Posts: 371
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From: Ft. Collins Colorado
Sorry guys! Between a senior moment and not enough coffee,I was wrong. The 3157 generation bulb DOES have a specific orientation. It should be obvious when looking at the socket as there are 2 sets of contacts within it. The spacing of these contacts is quite obvious. Total seating is very much necessary.
Now for more coffee.
Now for more coffee.
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From: Dear Karma, I have a list of people you missed.
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I am a bit confused, How can that be when you have running lights and brake lights? Wouldn't the brake wire have to go to the brake filament?
Please explain to me how this works.
Thank You.
After looking at the bulb I see where it is possible, I didn't know the bulb had 4 wires going to it.
Please explain to me how this works.
Thank You.
After looking at the bulb I see where it is possible, I didn't know the bulb had 4 wires going to it.
Of the three wires going to the socket, one is brake(and turn), one is tail light and the last one is ground. The ground serves as the ground for either, or both, of the others.