An overdrive relay is a device used to transfer low voltage current to the overdrive solenoid. The overdrive solenoid then engages the overdrive transmission. When the overdrive transmission is engaged, the engine revolutions per minute is reduced, which in turn increases gas mileage. A faulty overdrive relay may fail to engage the overdrive transmission or cause intermittent activate the overdrive solenoid which results to uncontrollable operation of the overdrive transmission. Auto Parts Network offers the most efficient products for your automotive needs at lowest prices.
Overdrive Relay 
