Grid heater will not cycle at all when you go to start the truck. They work just fine when truck starts. They will cycle as usual.
What would cause this? Just replaced relay, checked solenoids on fenders. Is it my ecm? It had similar issues 2 years ago and it was early signs of an ecm failure I think.
What would cause this? Just replaced relay, checked solenoids on fenders. Is it my ecm? It had similar issues 2 years ago and it was early signs of an ecm failure I think.
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