The neutral will have raised ribs or other markings down the length of the insulation. The hot wire is always smooth. Examine the screw terminals on the new lamp socket. When wiring a lamp socket, the ...

It’s a common problem on ’99-’06 General Motors fullsize trucks and SUV, and we’ve all seen the symptoms: running around with only one daytime running light (DRL) working, or none at all. Simply put, ...