1966 Dodge NEED printed circuit board and voltage limiter

Rubin · Post by **Rubin** » Tue Feb 20, 2007 9:52 pm

I'm in need of a printed circuit board and voltage limiter. My fuel and temp gages don't work. Although the temp gages work every now and then. Unless there is another way to fix this problem. I would like to keep my original gages. The fuel gages did work but it don't now. I believe its burn up. So I will need a fuel gage. This is my first old truck that was running when I got it. Your help will be greatly appreciated.
Thank you Rob

Jeffc · Post by **Jeffc** » Tue Feb 20, 2007 11:20 pm

Frist, be sure that is the problem.
take the sending wire off both (on the engine
near the water return hose on intake man, fuel tank
on top were the fuel line comes out)
ground them each, see if the gauge pegs of ether.
If they peg, their good and the sender is
the problem.....

Rubin · Post by **Rubin** » Wed Feb 21, 2007 9:43 pm

I took it to a dodge dealership and there was an older guy that looked at it and had worked on this model before. They told me that thoses were the parts I needed.
Thank you Rob

Jeffc · Post by **Jeffc** » Wed Feb 21, 2007 10:07 pm

Well if he told you that you need a "circuit board and voltage limiter" I am not sure that I would trust him.
He may know cars, but not the trucks, at least not
well........

There are NO circuit boards in 61 to 71 trucks

some of cars had them in those years, trucks
did not.
I think you should run the test I posted above.
Just make sure the key is on (engine off).

The voltage limiter is built-in the fuel gauge
on all the above years on the trucks and can
not be replaced (you can replace them on cars).
So if the limiter is bad, gauge replacement
time......

So, if your truck is one of these years (need to
know what year) we will see if we can come up
with a working fuel gauge......
square metal plate on the front gauge set
should 65 to 68.

Website · Post by **wideblock** » Wed Feb 21, 2007 10:27 pm

jeff, wasnt there a post a while back about building a new voltage limiter?? i seem to recal one on both forums.

Jeffc · Post by **Jeffc** » Thu Feb 22, 2007 12:26 am

Ye, there was.
Here is one of them.
http://members.aol.com/moparnuts/modify.htm

When the limiter goes bad- most of the time
it takes the fuel gauge and temp gauge with it......

When you have a truck fuel gauge rebuilt,
they do not include the limiter so you
must add a limiter to the system.

Rubin · Post by **Rubin** » Thu Feb 22, 2007 6:10 pm

The truck is a 1966 Dodge D100. If you or someone could find a new fuel and temp gage I would most happy. When I found the truck in a shed. I put a dist.cap on it and drove it home. Its a short will base. Back to the gages, I noticed the problem and I thought it was in the key swicth because when I would crank the truck the 2 gages would peg out. So for some reason I wiggled the key and they would start to work properly. So I went and bought a new key switch thinking that would fix the problem, but it didn't. I wiggled the key again and thats when I seen smoke going from the front of the fuel gage. Thats why I think its burn up. I have tried to buy new gages but nobody around here can get them. It amazes me that you can buy every part to fix up a Chevy and Ford, but not a Dodge. Although I have found some parts on this web site.
Thank you Rob

TedWitt · Post by **TedWitt** » Thu Feb 22, 2007 10:35 pm

It sounds like you're voltage limiter has burned up.

Jeffc · Post by **Jeffc** » Fri Feb 23, 2007 2:08 am

I have only one spare right now (4 trucks to keep supplied) so really do not want to let it go...
I can direct you to a yard that has them, but
let's see if Terry or someone else has one(temp and fuel)....

The brand X and Y guys have it pretty easy with parts,
but then they need more new parts

TedWitt · Post by **TedWitt** » Fri Feb 23, 2007 5:28 am

About a year ago, someone on here told me how to fix this problem at Radio Shack, but I don't remember the number to the parts, I'll see what I can come up with.

Jones · Post by **Jones** » Fri Feb 23, 2007 8:55 am

OK so here's another link to what you're talking about.

http://www.allpar.com/history/mopar/electrical2.html

This is part of the reason the older round style guages are desireable. They have an external voltage regulator that I think may still be found. They look like the rectangle one in the link above.

The internals of your fuel gauge looks like this...

and

Notice the real thin heating-type-element wire that is broke. That is what these gauges do when they go bad from getting too much juice. Unfixable. The link above will show you how to circumvent the problem in the future with a new gauge.

There are places that can make gauges from your old gauges. I'll see if I can find that website. They are expensive though.

The voltage limiter on the site that Jeffc gave is what tried but you need to have a good working gauge to start with.

Someone correct me if I'm wrong about any of this.

Keith

Rubin · Post by **Rubin** » Fri Feb 23, 2007 1:34 pm

Jeffc, Thank you for helping! May someone has got one they will sell.
Thanks Rob

Rubin · Post by **Rubin** » Fri Feb 23, 2007 1:38 pm

TedWitt, Thank you, I will keep a check and see what you come up with.
Rob

Post by **cowboy** » Sat Feb 24, 2007 8:09 am

Rob email me , I think I have a extra gauge cluster I change out from the 66 here , I only change it , so it will have the oil gauge & not the light everthing worked real good , email at bottom of post

Post by **POWWAG** » Mon Feb 26, 2007 9:19 pm

Fuel gauge voltage regulator fix

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1966 Dodge NEED printed circuit board and voltage limiter

1966 Dodge NEED printed circuit board and voltage limiter

parts needed

Fuel Guage

Fuel Guage