2007 Chevrolet Trailblazer SS Q&A

2007 Chevrolet Trailblazer SS Question: Misfire code on C7 only at sustained HWY Spds 60 mph? No adverse pwr fluctuation

This happens after driving 60 mph for 30 minutes or longer. There is no adverse power fluctuations. -
Answer 1
Upper induction service should do it. -