Have a 2005 dolphin 8.1 vortec will idle and run fine in park but when in drive misses and doesn't have any power. No check engine lights any ideas ❚ Did you see the "Announcement : ★&bigst...
I just finished a Trailblazer that would not set the check engine light but did have a pending code for a misfire. Finally got a check engine light after a couple weeks and it was a bad coil pack.