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What Was Your Spark Plug Gap?

136829 Views 474 Replies 193 Participants Last post by  snowwy66
If you changed your spark plug gap per this thread or this thread, please report what the original values were here. If you have yet to change them, please remember to report the original values.

My case with GM has been escalated to a district case manager at GM to hopefully get some exposure on this issue. My primary goal is to allow people to go to their dealerships and have their spark plug gaps checked and corrected (as there has been a 100% error rate so far), and the more people and numbers I can present them with, the better.

If your username is on the below list, I already have your numbers down. If not, please post them. I need specific values, such as ".022, .023, .025, .025." I will also need the model year of your Cruze.

We have 37 cars recorded so far. I'd like to get at least 50. My current spreadsheet is also attached.

InsaneSpeed Steve
sciphi
garrettb1
Rosstude
wilde74k
rlw1224
crazylegs
ozman2005
audiobahnman
calintz
charlie_t
cecaa850
Chevyderek72
Ian_12
whatsstuckk5
XtremeRevolution
coinneach
tecollins1
Beachernaut
Red Dragon
twin1987
churdler
Vetterin
UR2N0Z
Higgs Boson
silverram323
OnlyTaurus
jblackburn
H3LLON3ARTH
SlvrECObullet
Campuscop2003
haoleboy
weimerrj
UpstateNYBill
EcoCruzer
danimal

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About 2-3 weeks ago I regapped mine back down to .028 and the car turned into a dog! No pick-up at all under 2500 rpm's. This morning before I left for work I upped the gap to .033 and the difference in low rpm power is once again quite noticeable.
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July 2012 Ltz...All Plugs at .028 using a real feeler gauge....How do you know that the gap tools you guys are using are correct? You think those .99ct ones next to the register at pep boys are right? ya right...
I eyeball mine. :dazed052:
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