2017 possible misfire?
10-06-2017, 11:43 PM
#1
Junior Member
Thread Starter
2017 possible misfire?
2017 Lariat crew short bed, 1100 miles.
With 1/4 to 3/4 throttle or so, the power delivery is uneven and feels like it surges, releases, surges, repeat. Not as noticeable at full throttle. With low throttle input there's a bit of vibration, not sure if related.
Initially thought driveline, like slop or unbalanced driveshaft, but because it's not as noticeable at full throttle could this be a tuning or misfire issue? Boost leak unlikely. Are your 17's smooth or is this normal? First Ford in a long time. I've read of vibes and issues with pinion angle and warranty replacement of ring gear? Not sure how the "learning" works to determine your driving habits for a tune, but drove moderately aggressive for first 1000 miles. I'm at 5,600 to 8,000 ft. elevation.
Plug gap too wide from factory?
With 1/4 to 3/4 throttle or so, the power delivery is uneven and feels like it surges, releases, surges, repeat. Not as noticeable at full throttle. With low throttle input there's a bit of vibration, not sure if related.
Initially thought driveline, like slop or unbalanced driveshaft, but because it's not as noticeable at full throttle could this be a tuning or misfire issue? Boost leak unlikely. Are your 17's smooth or is this normal? First Ford in a long time. I've read of vibes and issues with pinion angle and warranty replacement of ring gear? Not sure how the "learning" works to determine your driving habits for a tune, but drove moderately aggressive for first 1000 miles. I'm at 5,600 to 8,000 ft. elevation.
Plug gap too wide from factory?
Last edited by woodsracer; 10-06-2017 at 11:50 PM.
