gauge problem

[C928BRAN]

on my 69 charger, all of my gauges, except for the alternator, drop to 0 when i turn my parking lights on, and then when i turn the parking lights off, they will slowly come back up. anybody have a clue what is going on with them? thanks, for any help.

thanks, craig.

[Pete in NH]

Hi,

Sounds like possibly a bad ground on the dash printed circuit board. The parking light circuit also turns on the small lamps on the instrument cluster, so it could be a ground issue. There is a recent tread posted in this section on the issue, look a few postings down. It could also be something mis-wired if you've made any changes lately.

[Ghoste]

You know as I'm thinking back, that Jeep did the opposite.  When the lights came on, the guages all went up.  Irrelevant to this I suppose but...

[C928BRAN]

Now that you mention it, i do have a light out, on the right side of the speedometer. this is the first time i have started the car in a couple of weeks. I might have some corrosion in the terminals. thanks for the responses, i think i will start looking in that area.

[boydsdodge]

hello, did you have any luck with your gauges dropping?
i am have same problem, if i roll the dimmer down the gauges will return to normal, roll dimmer up and they drop.