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Replacing parking light bulbs...

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AMX2020 View Drop Down
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    Posted: Feb/12/2020 at 11:54am
Hi - I purchased a 68 AMX a short time ago. The front parking lights work when the headlights are on but are not on with the headlight switch at the first position (the taillights are).

I'd like to check the bulbs. Does the socket pull straight out the back or does it need to be rotated counter-clockwise first? Or is it best to get at the bulb by removing the lense?

Thanks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AMX09652 Quote  Post ReplyReply Direct Link To This Post Posted: Feb/12/2020 at 12:00pm
You have to remove the lens.


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OK, I'll do that, thanks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote scott Quote  Post ReplyReply Direct Link To This Post Posted: Feb/12/2020 at 4:35pm
I believe the 68 AMX has parking lights that come on with the first notch of the switch, then they go out when the headlights are on. Can anyone confirm this?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BU1 Quote  Post ReplyReply Direct Link To This Post Posted: Feb/12/2020 at 4:57pm
Originally posted by scott scott wrote:

I believe the 68 AMX has parking lights that come on with the first notch of the switch, then they go out when the headlights are on. Can anyone confirm this?
 
 Yes, that is how mine work.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AMX2020 Quote  Post ReplyReply Direct Link To This Post Posted: Feb/12/2020 at 5:20pm
Oh, I thought the parking lights were supposed to be on in both headlight positions. Mine are only on when the headlights are on. The turn signals and 4 way flashers work OK. Puzzling.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ramblinrev Quote  Post ReplyReply Direct Link To This Post Posted: Feb/12/2020 at 5:51pm
Originally posted by BU1 BU1 wrote:

Originally posted by scott scott wrote:

I believe the 68 AMX has parking lights that come on with the first notch of the switch, then they go out when the headlights are on. Can anyone confirm this?
 
 Yes, that is how mine work.


That's correct!

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Post Options Post Options   Thanks (0) Thanks(0)   Quote AMX2020 Quote  Post ReplyReply Direct Link To This Post Posted: Feb/12/2020 at 9:15pm
I removed the existing bulbs, they look to be LED. I decided to replace them with the traditional 1157 bulbs but for the life of me I cannot get them to seat properly in the socket. I'm not sure what the issue is, I made sure the pins are lining up correctly with the grooves in the socket. I believe that you need to line the pins up, press the bulb in and turn clockwise but I cannot turn the bulb and can only press it in a bit.  Maybe I need new sockets? Perhaps the spring in the socket has had it? 

I did notice that the connections on the base of the LED bulb do not protrude from the base to the same extent that the 1157 ones do, thought that might be the issue (the bulb can't be pressed in as far) but I can't get the LED bulb back in there either - frustrating!


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Post Options Post Options   Thanks (0) Thanks(0)   Quote tomj Quote  Post ReplyReply Direct Link To This Post Posted: Feb/13/2020 at 12:27am
1157's have two bayonet pins at different heights, so that it goes in only one way. 

Incandescent lamps (1157, etc) generally have solder blobs for contacts. The LED might have harder metal, that deformed the mating bump/contact in the socket. 

I think AMC did a heat seal pinch on the wires coming out of the plastic tube on back. If not, you can pull on the wires (nicely, slowly) to cause the phenolic disc in the socket to compress the springs inside, insert the bulb, let go the wires. That works when the wires aren't captive. YMMV, etc.


I think the park vs headlight behavior is partially or completely mandated by law, which varied with year, as did marker color. I'm pretty sure all of my AMCs have front markers mutually exclusive with headlamps; one is on, not both, or both are off.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote bigbad69 Quote  Post ReplyReply Direct Link To This Post Posted: Feb/13/2020 at 8:56am
Originally posted by AMX2020 AMX2020 wrote:

Oh, I thought the parking lights were supposed to be on in both headlight positions. Mine are only on when the headlights are on. The turn signals and 4 way flashers work OK. Puzzling.
LED bulbs is a red herring IMO. That the parking lights come on indicates the bulbs are OK. It sounds like a switch problem to me. I can think of no other reason why the operation of the park lights is reverse of what it should be.
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