Concerning the main electrical system of a motor vehicle or internal combustion engine. Consider a different tag for radios and other such systems.

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4
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2answers
2k views

Possible short in reverse lights on 2003 Nissan Frontier Pickup Truck

When I engage reverse on the manual transmission of my 2003 Nissan Frontier pickup truck, the reverse lights tend to sporadically turn on and off. I'm trying to figure out what path to take to ...
2
votes
2answers
728 views

What's the correct fusing for a headlight relay?

Summary of the situation: I have a 1975 Ford truck that suffered from the "Ford flashing headlight problem". The factory wiring uses 18ga wires over a very long path and through an under-rated ...
12
votes
6answers
27k views

Battery drains by itself when vehicle is parked (parasitic draw)

A 1998 Jeep Grand Cherokee has gone through 3 batteries in the last 3 months. While they have all been replaced by warranties, it'd be nice to get the problem solved permanently. I've tested the ...
4
votes
2answers
634 views

Upgrade to HID lights in a Jeep Wrangler

I would like to upgrade to HID lights in my 2008 Jeep Wrangler. The stock lights aren't bright at all. My question is, since this would be an aftermarket upgrade, what am I looking at here? Is it ...