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Pulled the sender out of my tank today and wired it to my gauge to double check the sweep..it was not my sender {ohms are right where they should be} So when I fill the tank, gauge reads full after the float drops to around 3/4 the gauge goes right to empty. I have heard the gauges can be...

I have been trying to figure out a problem with my electrical system and thanks to all that have given me tips. I pulled my alt out last night to look at the brushes and found a stick on label that reads the voltage at a certain rpm. I was unsure of what capacity I had so this post is to...

The car was running great until I got stuck in some traffic. The temp gauge went up to 230 and I noticed my volt gauge dropped to 12 volts, even when I reved the engine the gauge stayed at 12 volts. The only thing running was my electric fan. After a bit of time she started charging again 14.5...

I put one of these in years ago and had no issues, but I am giving the head a scratch today. The fan I have is a junk yard no name but works great when power is put to it, has a real kick when she starts up. I got one of the Zirgo adjustable temp switches and wired through a 40amp relay as...

I have a nice spare dual field alt kicking around that has some gremlins. I had a 72 swinger that had a perfectly good working alt but thought I would swap it out for the nice new looking one. When I did it was over charging, into the 18volt range. I took it in and it tested fine {twice}, tried...

I am at a loss I took my 73 Cuda with a 383 out tonight it was running great untill I pulled up to a stop light and she died. It started right up and died again but started right up again. Then she ran great for 20 minutes stopped at a few lights and did not stall. Turned onto my road and died...

I have been having a charging issue. I have underdrive pulleys on the car and at idle I was getting 10.5 volts and when running the car it would go up to 13.5 volts. Problem is I couldn't drive at night with the lights on while at a stop light. I changed the alt pulley from a 3 1/2 to a 2 1/2...

My voltage gauge shows I am charging at around 10.5 to 11 volts. When I rev the engine to about 2000 it pops up to 13+ volts. Should I assume it is the voltage Regulator? It is a newer solid state reg. With the car a idle I am getting 11.75 volts at the battery. Cleaned all the battery posts and...

I did what I thought was the MAD set up a few days ago. My harness was pretty hacked before I started. I am second guessing my change though, because after the change I have constant power to my fuse block even with the ignition off. This can't be right. I was installing a stereo yesterday and...

I hope an electrical guru can shed some light here. I grounded my gas gauge and it went to fuel. I put a test light on the wire near the tank and grounded it and got pulses of light. With the ignition on the gauge moves about an 1/8 inch. I put 5 gallons in the tank and it still only moves a...

I have been following a wiring chart for the 72 Demon and have no power to the large yellow wire running up to the ignition switch. I ofcourse put the seats back in awhile ago and can't get under the dash enough to see where it runs. The yellow comes from the coloum to a connector the yellow...

Hey guy's I had the car running yesterday without any problems, this morn I went out to warm it up and as I was starting it I heard what sounded like a wire in a fan blade{that didn't happen} But the only way to shut the car off was with the disconnect switch on the battery. Now if I engage the...

I was out looking at fixing the fuel gauge today and was trying to chase some wires. I will try grounding the wire to the sender and see what happends, but as I was using my test light I put it on the back lock nut to the fuel gauge and the test light was blinking. I moved the test light around...

Going through the car today doing some electrical clean up, noticed the reverse 4 speed light is not hooked up, after looking couldn't find where the connection is? Looking into the dome light today as well, took the whole dome fixture down and another mouse fell out...good thing I am redoing...