hp tuners
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[Help needed] Silverado Hybrid stock HP Tuners file
Hey everyone! So long story short I’m looking (desperately) for the stock HP Tuners file for my ‘11 Silverado Hybrid. Bought off auction, previous owner really effed everything up in HP Tuners and now my mechanic can’t return it to stock because it is not in HP repository. Any guidance or...- DLM_GT
- Thread
- 2011 hp tuners hpt hybrid sierra silverado stock tahoe tune yukon
- Replies: 17
- Forum: Hybrid General Discussion
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2019 Yukon Stumble / Misfire, no codes
5.3 6 speed with 80,000 miles. At light throttle there is a noticable stumble that smoothes out with RPMs.. no codes thrown. Just changed the plugs and wires - they were shot. feels like it runs a little better, but the stumble is still there. Based on some forum posts, I decided to change...- mecheng76
- Thread
- 5.3 stumble hp tuners misfire
- Replies: 2
- Forum: Engine & Drivetrain
