What is the Ignition Relay?
Your car ignition relay is an electrical device that switches power to your fuel and ignition systems. When you turn the key to the ON position, the ignition relay switches lets power to be diverted to systems needed to operate your vehicle. The ignition coil then receives power from the battery and delivers it to your spark plugs. This process ignites the fuel and enables your vehicle to run.
Ignition relay replacement is not a part of routine upkeep.
A faulty ignition relay can drain your battery.
Ignition switches that are improperly soldered can cause starting problems.
A buildup of hard oxide on the relay can cause the switch to malfunction.
How to Fix:
The battery is disconnected and vehicle placed on jack stands
The faulty solenoid is removed
The new solenoid is installed
The battery is reconnected and the jack stands are removed
The ignition is turned on to test the relay operation
The ignition relay is important to the operation of your vehicle. If your ignition relay is defective, your vehicle will not start or a parasitic load will drain your battery when the ignition is off. If you suspect the ignition relay is faulty or your vehicle has ignition related problems, have one of your expert mechanics analyze and repair it.
Common signs indicating you may need to change the Ignition Relay:
Battery has a low charge
Engine stalls while idling or slowing down
Car won’t start, especially in hot weather
Dashboard lights go off when car stalls
Tachometer and speedometer go off and then come back on
Importance of this service:
The ignition relay is an essential component for vehicle operation. If your car is stalling while idling in traffic, there are potential safety issues. If your vehicle will not start because of a defective ignition relay, you may be stranded. Have your ignition relay changed once it has been deemed defective.