Chevy S10 4.3 No Start

Starter Relay wiring  Red - 12V constant  Black - ground  Purple - starter feed  Yellow - control signal (ignition switch) We had a '95 Chevy S10 towed in to the shop for a no start the other day, and I started with the usual; checked the battery cables for tightness and corrosion, booster pack to … Continue reading Chevy S10 4.3 No Start

Mercedes SLK230 K40 Relay Module

This week's tech post will cover diagnosing, removing, and installing a multi-function relay module in a 2000 Mercedes SLK230 roadster. First, the customer complaint: car runs great, no problems, but it will occasionally die and fail to restart. About 15-20 minutes later, it will usually start and all is well until it does it again. … Continue reading Mercedes SLK230 K40 Relay Module