bmaleman Profile Topics Started Replies Created Engagements Favorites Search topics: Forum Topics Started Viewing topic 1 (of 1 total) Topic Voices Posts Last Post 2006 Sierra 5.3L 4165e High RPM from 2nd to 3rd Started by: bmaleman in: GMC 1 1 8 years, 5 months ago bmaleman Viewing topic 1 (of 1 total)