Ignition & Electrical

A little while ago, we ran a story that mentioned how some spark plugs use a built-in resistor to help suppress electrical interference, so that vehicle electronic components (like radios […]

Q. I recently installed an aftermarket USB port with a digital voltage display in my newer Ford truck. I noticed my battery voltage varies significantly, between 12.9 and 14.1 volts, […]

We talk about relays a lot around here. And that’s simply because they’re really, really handy in situations where you need to control the flow of power to your electrical […]

I have been looking for how to wire a CS-130D alternator in place of my CS-130. I came across your article on how to hook up a new alternator in […]

While we’ve covered resistance in spark plug wires before, the opportunity recently arose to talk about resistance in spark plugs and plug boots too. You may have read the earlier […]

It all started during our drive to check out the Cavalcade of Customs in Cincinnati, Ohio. It was a bitterly cold day and we noticed that our vehicle’s cabin was […]

I have a 1967 Nova that drains its battery if I leave the car sitting for more than a couple of days. I’d like to try to fix the problem […]

Whether you’re retrofitting an EFI kit, replacing a crusty bulb socket, or installing a new stereo, if you work around cars long enough, you’ll eventually have to splice some wires. […]

A set of jumper or booster cables is something few of us ever think about. Unless of course, you discover a dead or weak battery and you need a boost. […]

As with most things in life, there’s a right way and a wrong way to do things. That idea extends even to crimping battery cables. This story will illustrate how […]