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LFX Spark plugs, who's done it??

32169 Views 43 Replies 21 Participants Last post by  12 lt
I was looking at the back ones and I hope that the intake doesn't need to come off to replace them....

What have you guys seen out there? The fronts are so easy and accessible they could be done by a kid!
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Chrislind2, kd7ctv and tehhax- I hope you all know the original poster was asking about the LFX or the 3.6L DOHC found in all 2012+ impala, not the 3.5L and 3.9L. The push rod engines are simple to do a tune up on. You don't even need the W-body ratchet either though it does make life easier lol

The LFX is a little different though, the plastic intake is molded to cover over the rear bank and makes it impossible for you to clear out the cylinder #3 and #5 coil packs, you can snake out cylinder #1 coil pack though.

I guess the laugh is on you Chislind2 for not being able to read the post correctly, I do this for a living/work at a professional shop.
Yep and the factory service manual says to remove the manifold also.
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According to alldata which is the same as the factory service manual, torque spec for the intake bolts are 25Nm or 18 Ft/Lbs. No more excuses ;)

If you don't want to spend $200 for the printed factory manuals, has the same info on a subscription basis. I got a code for 2 years access for less than 15 bucks. Id be happy to give it to anyone that pms me. Best money on your car you'll ever spend for the diy'ers.
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Just wanted to clear up some confusion about my last post. I've gotten some PM's asking for my own subscription to AllData. That wasn't what I was offering. I'm offering a coupon code for your own subscription for 2 years access for less than 15 bucks, which is an awesome deal and a must-have if you do your own work on your car! Thanks.

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