TorqueMan
Well-Known Member
- Joined
- Aug 24, 2017
- Threads
- 7
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- 693
- Reaction score
- 219
- Location
- St. Jacob, IL
- Vehicle(s)
- 2017 EcoBoost Premium
I suspect you are confusing "sputtering" with the popping that many get during shifts. Are you experiencing any power loss? Does it occur during acceleration, or only when you let off the gas? If there's no power loss and you only get this sound when you let off the gas it's probably mild backfiring, which is harmless.I have been tuned for well over 3K miles now, and I have sputtering after letting the gas go before shifting. The sputtering appears to come from the intake (left side), like the engine is choking for half a second and suddenly drops RPM. I can alleviate this by giving a little gas before shifting.
It does this on certain RPMS while shifting, mainly on 1st and 2nd gears. Do you guys know what could be wrong?
Try this: Accelerate in 1st or 2nd gear up to the RPM where you normally would shift, then close the throttle without engaging the clutch. The car will immediately begin to slow under engine braking. If you are experiencing backfiring this will exacerbate it; the "sputtering" will become a series of pops.
Bottom line, unless you are suffering any power loss I wouldn't worry about it. If, on the other hand, you experience power loss associated with sputtering during acceleration, then you need to troubleshoot further.
EDIT: Listen to the exhaust in this video, particularly as the engine RPM drops after the rev:
Is this what you're hearing?
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