What Was Your Spark Plug Gap? - Page 33
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Thread: What Was Your Spark Plug Gap?

  1. #321
    Duke of Oil
    XtremeRevolution's Avatar
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    Just a quick note; I did run my plugs at .038" for a while, and did not get spark blowout until I went up to .040".

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  3. #322
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    Good info.

  4. #323
    Learning about my Cruze
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    Felt the obligation to post in both threads
    Gapped mine last night. I mixed the order, but 2 were gapped at .027 and 2 were at .021. Regapped to ~.035. Can't confirm any improvements so far besides the oddity of a smoother shift from 2nd to 3d (jerking went away)
    2012 Cruze LT 1.4L - 9000KM

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  5. #324
    Driver's Ed jadedgamerx's Avatar
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    I regapped mine tonight and did the resonator bypass, so far nothing noticeable to report but it was just a quick trip to the gas station to check my air pressure. We'll see how it does on mileage and in traffic before making any judgement calls.

    Mine were as follows, assuming Cylinder 1 is closest to passenger seat and Cylinder 4 is closest to driver seat:
    Cylinder 1: 0.026
    Cylinder 2: 0.026
    Cylinder 3: 0.026
    Cylinder 4: 0.025

    Regapped to 0.035 across all four.
    2012 Cruze 1FL 1.4T6A - Mfg. Date: 12/11 - Lordstown

  6. #325
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    Quote Originally Posted by jadedgamerx View Post
    I regapped mine tonight and did the resonator bypass, so far nothing noticeable to report but it was just a quick trip to the gas station to check my air pressure. We'll see how it does on mileage and in traffic before making any judgement calls.

    Mine were as follows, assuming Cylinder 1 is closest to passenger seat and Cylinder 4 is closest to driver seat:
    Cylinder 1: 0.026
    Cylinder 2: 0.026
    Cylinder 3: 0.026
    Cylinder 4: 0.025

    Regapped to 0.035 across all four.

    Give it about 50 miles before making a judgement call.
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  7. #326
    Driver's Ed jadedgamerx's Avatar
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    Quote Originally Posted by titan2782 View Post
    Give it about 50 miles before making a judgement call.
    Something I forgot to remember when I got home, I did notice that the idle was so smooth, I wasn't sure the car was running until I looked at the dash. So that is an improvement, it wasn't bad before, but not "forget the car is running" smooth.
    2012 Cruze 1FL 1.4T6A - Mfg. Date: 12/11 - Lordstown

  8. #327
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    Quote Originally Posted by jadedgamerx View Post
    Something I forgot to remember when I got home, I did notice that the idle was so smooth, I wasn't sure the car was running until I looked at the dash. So that is an improvement, it wasn't bad before, but not "forget the car is running" smooth.
    This is something I also noticed. The engine just runs so much smoother with gaps at .035".

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    "When freedom is at odds with government policy, one of two things eventually happens: Either freedom is crushed, or political leaders are forced out in disgrace and replaced with guardians of individual liberty."

    "...the Supreme Court has ruled that the right to keep and bear arms exists independently of the Second Amendment...the Bill of Rights is a reminder to the government, not [an] authorization..."

  9. #328
    Driver's Ed jadedgamerx's Avatar
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    Quote Originally Posted by XtremeRevolution View Post
    This is something I also noticed. The engine just runs so much smoother with gaps at .035".

    Sent from my SGH-T999 using AutoGuide App
    I just finished reading all 34+ pages of responses and holy crap you have done a lot of work for us XR, thank you! I also learned that I need to let the car re-learn fuel trims (which is something I knew previously with other car modification adventures and completely forgot).

    You deserve a beer man, if I'm ever in Chicago I'm looking you up.
    XtremeRevolution likes this.
    2012 Cruze 1FL 1.4T6A - Mfg. Date: 12/11 - Lordstown

  10. #329
    Off-Road Champion Starks8's Avatar
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    Quote Originally Posted by jadedgamerx View Post
    I regapped mine tonight and did the resonator bypass, so far nothing noticeable to report but it was just a quick trip to the gas station to check my air pressure. We'll see how it does on mileage and in traffic before making any judgement calls.

    Mine were as follows, assuming Cylinder 1 is closest to passenger seat and Cylinder 4 is closest to driver seat:
    Cylinder 1: 0.026
    Cylinder 2: 0.026
    Cylinder 3: 0.026
    Cylinder 4: 0.025

    Regapped to 0.035 across all four.

    Some have said it's a must to unhook the car battery before or after performing the spark plug regap so that the car/engine resets itself the new gap readings.
    XtremeRevolution likes this.

  11. #330
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    I didn't disconnect my car battery when I regapped. The car figured it out within a mile or so of driving after I regapped my plugs. The Cruze's ECU has got some really smart software when it comes to how the engine is operating. As a software engineer, I'm impressed at the quality of this car's computer systems.
    XtremeRevolution likes this.

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