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I had a problem with low voltage at the + coil preventing ignition on a 1970 E body. I spent 1 1/2 years trying to find the loss with help and patience from Mattax. I replaced my ingition switch, but my problem persisted. Finally I checked current under at a load at every connection- coming into...

I'm surprised at the silence by popular 'Hot-Rod' type magazines on this topic for flat-tappet type original engines. I'd like to know from an unbiased source, if there is a mixing problem that makes additives ineffective or if there is a vested economic interest with this claim, with adding...

The changes you menion happen with every generation; each tending to think its generation was the only and best, and longing for something that is going away. There seems to be a technology/spiritual tradeoff. The new cars are faster and handle better, but for most of us are relatively more...

My friend came over, and disconnected the starter relay and got 10 something volts in the run and 12.4 in start circuit, so I may be OK with the under the dash wiring and a new ignition switch. I never found a short so far.

I've gotten a lot of help from Mattax and am waiting for a buddy to come to my house to do what you guys have mentioned. While I had time, I stripped the cloth off the splice and got battery voltage, 12.4 to 12.6 on all 5 wires as best I could. Then when I turned the ignition switch to 'run,'...

you have helped me and being apart makes problem solving hard. I have 12.4 volts +- .2 at 5 wires at the power splice, but when I turn the ignition key to run, it drops to 10 something. I have 12.3 volts at the red battery wire going up the steering column, J1-12R. But when I turn the ignition...

I need to recharge it. thanks.

Battery voltage before start: 12.35. Voltage at start 10.15. I have not measured voltage drop from the starter relay to the red ammeter bolt, because I noticed when starting the car, I only get 8-9 volts on my meter, but while starting, if I move the key just a tad 'up from the max downward...

I did not know about 'shorts', and when my bulkhead connectors looked good, and the low voltage was showing up on the brown ballast resistor bypass wire under cranking, I was led to the ignition switch, thinking there was rust/resistance inside. I did not know that the quality of lights and...

Thanks for all your help. I'm still learning. It's unusual to see someone give of their knowledge in the ways you have. I bought a shotgun, having never used one. It took me a while to understand how it operates 'mine,' and it's taking me time to grasp these concepts- current flow is needed to...

I agree, but my wiring is 52 years old.

I've got good voltage coming into the ammeter leads but by the time I check voltage at both the fuse leads and the ignition switch lead at the base of the steering wheel, I have about the same voltage drop. So I'm thinking the power splice under the dash. Should I try to repair/fix or get a new...

It's the way of the world-technological and value change. I can't make my kids be interested in my muscle car; they can't share my memory of the girl at the drive-in and street racing. A lot of the wraps of sacredness are off now. They will find their own way; but we can and must warn them too...

I finally got 11.65 volts at my coil in 'run,' so I'm satisfied. Basically it was cleaning and dealing with another connector on the passenger valve cover. Plus, thank you for your cool diagnostic and unintended benefit of diagnosing my ignition switch from the wiring at the bottom of the...

I've learned the truth of what both of you said the hard way...use blocking, and clean the OsPro with water, dry, and any wipe dust before you prime..etc..Thank you

I have a truck hood and top off a 1989 truck my kids bought that looks like a Cheetah scratched it. A MoPar parts guy suggested I use OSPHO, after sanding just as extra rust insurance. I used epoxy primer before a bondo with aluminum. Next I used primer. I'm finished painting, but there are...

I've started an out-of-step journey late in my sheltered life cycle. Working on an old car with its problems is like solitary mining, finding out 5 secrets about your wife you did not know.

I rigged up a temporary blue wire connection at the engine connector shown and my direct voltage drop (with everything hooked up) at the IGN 1 side of the ballast resistor went from 2 volts to .33. Thanks for all your help. I'm looking for a connector and will move on to the next step.

When you started to help me, all I wanted was ignition on start, by getting enough volts to the + coil, thinking my engine may take a little more volts than, say, a 273 V8. I thought my ignition switch might be bad, but you showed me to do some tests with the column connector under the steering...

I have 10 volts when cranking the IGN2 J3-14BR wire on the ballast resistor. Doing a voltage loss test on the other side of the ballast resistor with the key in 'run,' I get 2 volts loss (J2A-16DBL wire), but I don't know if some other component should be disconnected. One complicating factor is...

I want to thank you for this post, as it provides a chronological record. I got my car started last week, and you've helped me start on a journey - like putting a gas filter before my fuel pump, since the tank is old, and checking starter relay, ballast resistor-coil fit, spark plug wire...

You gave me all the pieces. You led me. Your post 10-12-18 was the key to nothing happening, after all the work: 'Before reinstalling the male terminals...this is important or the terminal will back out." It was just a tiny adjustment to open up the main red power source, but it was backing out...

In the engine compartment, I unhooked the big red wire's male connector and touched its end with one end of a volt meter and its associated 'female' receptor at the bulkhead with the other end. It's possible my 2 relevant column connectors underneath the dash we re not pushed in far enough...

Need to learn

Mattax, even with the damaged connector housing on top the valve cover,, I hooked up all connections, and the dome light was off with the door open. Bad news. There was 12.6 volts going into the bulkhead at wire A1B-10R, but if I removed the bulkhead connector module and checked for continuity...

Wow. You are right. I kept my car running for 20 + years, but never left my driveway, 'till this electrical problem. I come from a long line of vehicular abuse, so to speak- connected before this car..I traded a Hemi Dart for it years ago - straps, special glass, but never been registered, my...

I unhooked the harness on the top of the passenger side valve cover. One female connector was depressed. It connects to the dark blue (to the + coil). All male/female connections are unhooked now for cleaning, so there was no continuity between the two related male/female pairs. Could this be my...