How do I Check a Fuel Pump Relay for a 93 GMC Jimmy S15?
Like other vehicles, the relay on the 1993 GMC Jimmy sometimes needs replacement. As part of the fuel pump, it’s sometimes hard to determine whether the fuel pump itself is bad or whether the relay is at fault. Whether your truck’s relay shorts out due to an electrical surge, or fails due to normal wear and tear, you need to know how to test the relay to know that the relay is causing problems, and not the actual fuel pump.
