Replace a Spare part Glow plug relay – a defective one or if the limit of use has been already reached. Find out useful information about Glow plug relay
By a signal of the electronic control unit glow plug relay applies current to plugs during engine start and stops supply when they reach working temperature.
3 tips on glow plug relay exploitation
Specific lifetime limit is not set by manufacturers. It should be replaced if defect signs are found.
The connection layout of glow plug relay cannot be changed. That is why you should mark all wires for following correct connection during demounting of the component.
Prevent contact of the component with water: contacts may oxidise from excessive humidity. Even short circuit may occur.
Defects of glow plug relay, their causes and signs
Contacts oxidation. Commonly, it occurs as a result of the component housing pressurisation failure or ingress of moisture. If the contacts are oxidised, there will be troubles during engine start. In some cases it won’t start at all.
Breakage of coil winding. It may be caused by increasing of voltage or getting of moisture or oil to the component. Unstable operation of the engine will be the sign of breakage.
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