Guage lights go out when i turn my headlights on.

[89drop]

ok, so i really dont drive my car at night, and have only put maybe 500 miles on it the past 3 years (thats pushing it!) so i just did an led guage light swap, and noticed that when my car is on, and i turn my headlights on that my guage lights go out. this is among a few other things that happen when i turn my lights on. the tach also goes all the way down, and my other indicators such as temp and oil pressure get wacky! gas guage doesnt work either, but i was leaning towards a bad sending unit on that one...maybe not now. any ideas anyone? im so bad when it comes to wiring...

 

[HISSIN50]

Do the lights and gauges function properly when just the parking lights are on?

 

[89drop]

Do the lights and gauges function properly when just the parking lights are on?

no, even when just my parking lights are on and the key is on they dont work.if the key is off they come on...

 

[93project]

You might have too much stuff on the same power feed, bad ground, etc. Where are you getting your power from for your lights? I get mine from behind the headlight switch. I attached a jumper wire from the parking light "hot" wire to the gauge cluster. It should have a fuse in line as well for safety, but placed where it's easily reachable

 

[HISSIN50]

Agreed with needing to know where you sourced gauge lighting from. Parking light circuit or instrument (dimmer) circuit?

Have you undone your new wiring to see if the lighting goes back to normal?

 

[89drop]

Agreed with needing to know where you sourced gauge lighting from. Parking light circuit or instrument (dimmer) circuit?

Have you undone your new wiring to see if the lighting goes back to normal?

i didnt re wire anything, i just added the LED bulbs. but it looks as if the old owner did something...i guess i need to really look at it a little better to see what might have been changed. the bad thing is that i have never driven this car at night, so i didnt know this problem even existed...

 

[HISSIN50]

Ok, so you don't have aftermarket gauges - the LEDs were installed in the stock cluster, no?

In case it helps, this link is courtesy of Liljoe07:

http://www.stangnet.com/tech/cluster87-93.pdf

 

[Stever89]

Just a shot in the dark here, but that troublesome rheostat can make weird things happen. Work that dimmer back and forth about 20-30 times.

 

[89drop]

Ok, so you don't have aftermarket gauges - the LEDs were installed in the stock cluster, no?

In case it helps, this link is courtesy of Liljoe07:

http://www.stangnet.com/tech/cluster87-93.pdf

yes, these is the stock cluster...just added the led's

 

[89drop]

Just a shot in the dark here, but that troublesome rheostat can make weird things happen. Work that dimmer back and forth about 20-30 times.

i will try that tonight for sure! thanks for the responses everyone, hope to get this fixed, or i just wont drive at night still! lol

 

[89drop]

i will try that tonight for sure! thanks for the responses everyone, hope to get this fixed, or i just wont drive at night still! lol

no go on that, they still act retarted... think its time to call florida50...