2012 1lt
What Was Your Spark Plug Gap?
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.
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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Adjusted to what?! 0.028, or 0.035? Ask them that too! If they set it to 0.028, further adjustment to 0.035 might be a next step.They have been all adjusted, and unfortunately I do not have the figures as requested in the initial post of this thread, though I will try to find out.
I have noticed much better performance from the low end RPM range and a more spirited & lively drive. But, the engine knocking/pinging still exists.... I'd appreciate any comments or direction to a similar thread about this, if any. As Holden Australia Head Office has informed me, there have been no cases about the engine knocking...
Though when I speak to them on Tuesday, as they promised to call me back to follow this all up, I will be right on the spark plug debacle!
Ehhh, I'm at 19,000 miles in 6 months so I'll have that in another 6 months. :th_coolio: or :angry:, depending on how I want to look at it. But CruzeEcoBlueTopaz will have him beat in no time, he's running more than even me. Look to him to find out all the problems once our Cruzes get up there in miles, and then maybe me. lolWow, that's a lot of miles! How's the car running?
I'm still finding my gas mileage going up, overall. Today, I filled up, hopped on the highway for a bit, then a short trip through the city, and then back on the highway for a while. The DIC was reading in the low 40's for mpg's, and still going up when I had to get off the highway and go up a mountain (almost 2000' of elevation change), which killed that. I got quite a bit of it back going down again but I still have to go up another 1300' or so at the end of the day to get home too.
I attribute the overall improvement in gas mileage to the car breaking in, changing my spark plug gap to .035, and increasing my tire pressure to 44 psi, but how much to attribute to each is anyone's guess.
1 - 3 of 475 Posts
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