Question:The RAP relay is clicking like a turn signal flasher on my 2002 GMC Yukon XL with 328,678 miles. It starts and stops, and it happens when the turn signals are off. Answer:That's serious ...
A friend once asked about the block of relays pinned to a board behind my car's dash. To him relays were the mysterious little boxes that some cars inexplicably required to operate a horn. More than ...