I have an 04 Trailblazer 2WD and recently it has lost power twice while driving. The first time it happened the Reduced Engine Power light came on but the second time it didn't. I have noticed on both occasions I had just started it up and not driven a mile when it happened. I turned the engine off and restarted it and it was back to normal.
I went to get it checked out but they said they couldn't fix it and gave me a code. They said someone more qualified should look at it so now I'm trying to figure out what to do. The code is P1680.
Has anyone else dealt with this problem?
Also, I have noticed that when I start it up after sitting awhile I have to let it sit a few minutes because if I drive it right after starting the engine it will rev up when I pull out of the drive.