New answers tagged truck
Relays in active use will always get hot. They are an electromagnetic coil, and so will generate heat while electricity is flowing through the relay. As long as the current doesn't exceed the capabilities of the relay, then it should be fine.
Have you replaced complete mirror assemblies or just the mechanisms with the twin motors which the mirror glass clips into? On a lot of vehicles the mechanisms are identical whilst the shape of the glass is 'handed' to fit one side. If it is the mechanisms that have been changed their wiring is 'handed', and you may have them on the wrong side of the ...
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