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Dash Lights
#1
My dash lights were getting dimmer before I put this car in my shop a few years ago. Just about have it ready to roll again and today hooked up the battery and everything works, but dash lights are still quite dim. I seem to remember reading that the circuit boards behind the dash would cause this problem over the years. Can anyone verify that? I can buy the circuit board for about $75. Suggestions please. Thanks.

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#2
Forgot to request email notification

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#3
Could be a number of issues: a failing rheostat on the headlight switch, poor 4 amp fuse contacts in the fuse box, oxidation on the dash cluster connector to circuit card.

All in all, these lights are really dim, no matter what one does. I think it has to do with the driver's age and failing eyesight; we never complained back in the day...

Let me check your shorts!
http://midlifeharness.com

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#4
LOL Haha. I believe you're correct.....I ordered this car in April of 1971, I could see those lights pretty darn well then!!

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#5
I too have trouble reading my '73 dash board lights.

.jpg   COKE BOTTLE GLASSES MAN - images.jpg (Size: 6.23 KB / Downloads: 174)

Can any one give me some good advice on what to do ?

whistling LORD, MR FORD - JERRY REED
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#6
yellowmach351;288824 Wrote:My dash lights were getting dimmer before I put this car in my shop a few years ago. Just about have it ready to roll again and today hooked up the battery and everything works, but dash lights are still quite dim. I seem to remember reading that the circuit boards behind the dash would cause this problem over the years. Can anyone verify that? I can buy the circuit board for about $75. Suggestions please. Thanks.

Hi there,

There have been quite a few posts posted on this very subject over the years with the Forum. Try the search engine for some good feedback and help. Here are some links to get you started.thumb

http://www.7173mustangs.com/thread-fix-f...nel-lights

http://www.7173mustangs.com/thread-instr...ht-sockets

http://www.7173mustangs.com/thread-advan...hting-2014


Cheers,

Greg.Smile

whistling LORD, MR FORD - JERRY REED
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#7
Austin Vert;288866 Wrote:
yellowmach351;288824 Wrote:My dash lights were getting dimmer before I put this car in my shop a few years ago. Just about have it ready to roll again and today hooked up the battery and everything works, but dash lights are still quite dim. I seem to remember reading that the circuit boards behind the dash would cause this problem over the years. Can anyone verify that? I can buy the circuit board for about $75. Suggestions please. Thanks.

Hi there,

There have been quite a few posts posted on this very subject over the years with the Forum. Try the search engine for some good feedback and help. Here are some links to get you started.thumb

http://www.7173mustangs.com/thread-fix-f...nel-lights

http://www.7173mustangs.com/thread-instr...ht-sockets

http://www.7173mustangs.com/thread-advan...hting-2014


Cheers,

Greg.Smile

I find myself having the same issue... I was going to start a new post but decided to join this thread instead. I even replaced all light bulbs with LEDs and new sockets.
I am still not happy with the brilliance of the cluster... Lights did not work when I first replaced all bulbs and had to mess with them for a while before they worked...
I am now thinking that I may try a new circuit board but was hoping for an opinion before I go and spend another $100.00.

Any advice ?

Thank you.

Nelson.
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#8
I just replaced all olf mine with LEDs, and the advice I can offer is this: remove the diffusers, ensure all of the new LEDs are installed with proper polarity, check the contacts on all of the bulb housings, and check the contacts on the circuit board with a meter and the lights on before going with a new printed circuit - it's just money wasted if the diffusers are killing the light output and/or the bulbs are in backward and not making contact.

Eric

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#9
The best thing you can do for your interior lights is remove the headlight power from the switch by adding a relay. This will give you a full 14 volts to the headlights and remove the strain on the switch. A bosch relay is like 20 bucks. You can check the difference by checking how bright they go without the headlights plugged in
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#10
NG8264723;288916 Wrote:The best thing you can do for your interior lights is remove the headlight power from the switch by adding a relay. This will give you a full 14 volts to the headlights and remove the strain on the switch. A bosch relay is like 20 bucks. You can check the difference by checking how bright they go without the headlights plugged in

Great idea! I have a relay kit for mine, but haven't installed it yet. Also have a set of factory-style lights with H4 bulbs to go with it.

Eric

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