I looked through the archives but didn't see this one exactly.

This morning I started my car, it started easily, though I did have the block heater plugged in. I let the car warm up for a few minutes before I left. As I was pulling out of the driveway, I saw the glow plug light was still on and would occasionally flicker off. I pulled off and looked at the fuse in the black box, but it appeared ok visually anyway.

As I drove it stayed on with the occasional flicker until I got on the highway and it eventually went off and stayed off for the rest of the drive.

It is misty this morning here, about 40 degrees.

Any ideas what to look for?

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