2014 Sierra 5 3L Misfire #4 

After spending a ridiculous amount of time chasing a continuous problem with plugs fouling on #1 on my 5.3L Silverado, I finally installed a Range Tech module to lock out the AFM shutting down 4 cylinders. 6 months later and no fouling or misfires I pulled #1 to check. No fouling. No problem. UGH. Thank you Chevy for owning up to an obvious problem with your ^%$%^$$$AFM system. Can you imagine all the recalls if they actually admitted that their AFM system was causing premature engine problems, code problems and failure to pass inspections. Yeah right.

And the AFM debacle continues. Many miles ago I plugged in a Range Technologies AFM module (OBD port). Keeps it on all 8 cylinders all the time. 2011 5.3 @115k miles, so far so good.

Thank you man for this video!

That’s the one I’m having issues with. I’ll be working on it this weekend

Just learned a transmission shop can delete the cylinder deactivation in the computer. Haven’t done it yet, saving some money to have it done

Hey I have a 6.2L GMC Yukon Denali XL but mine does not move in and out, the rocker arm has a little play side ways and it’s on some of the cylinders on Bank 1

How long did it take you to complete the job, I had a service engine code once stating the same problem and same cylinder, I took it to the dealer and left it, while I went to work, the dealership notified me that the truck was fine, it just had a loose spark plug wire, it seems strange that it took them all day to repair the rough idle issue I had, and since I just discovered your video, I wonder if my dealership had to perform the same diagnoses and repair as you did? Great video!!!!!!!

Is this still on a 2016 2500 Chevy??

Hey i have 2015 suburban and it has code p0324 coming up when i accelerated on highway about 60mph, engine started to have ticking sound, i don't know whichside of the engine coming from, but i know if i slower down my speed, the sound go away …, but the code stays on P0324 knock systems error, could it be the same issue as in the video?

Oh boy I'm having second thoughts about buy a used 2014 5.3 Sierra now 🤦🏾‍♂️

What does a job like this usually run price wise? I’m pretty sure I had this happen to me on the way to work today, getting on the freeway under acceleration not wide open and CEL starts flashing, rpms are jerky/sluggish just below 3k like they don’t want to climb. Idk I’ll be in the shop tomorrow this sucks though.

How much was he charged for the repair?

Have any idea what i should do for 2015 gmc sierra code ( PO306 cylinder misfire detected )

We are having trouble with two coils on one side not getting power suggestions s

Hi. Do I have to remove the whole head cylinder in order to replace that lifter?

Will you use up grade lifters and trays! I got one that's jerked since it was new! Sometimes I just air it out then runs okay for awhile I guess I need to just speed every day! Lol

Was it burning oil and smoking out of the tail pipe?

I have a p0306 with misfire on a 2015 Yukon flex fuel system and eco tech but my Yukon has white smoke coming out of the exhaust any idea what it could be?

Afm delete the engine. That fuel management is a pain.

My dealer keep telling me I need to put better gas in my gmc but it's keeps misfiring its like they don't want to fix my problem I'm getting pissed

What’s the price to do that job?

I had this happen ..it didnt collapse but lifter stuck cyl # 4 misfire, i tore down replaced new lifter gaskets so on and it happened again shortly after any idea what i should do now .?

Governments forced manufacturers to make their vehicles more fuel efficient. What they didn't enforce is a way to show those same vehicles are durable. Manufacturers don't complain, they get to make more new vehicles, and their main competition, old cars, are gone. In the end, overall environmental costs rise because cars don't last as long. It's a win for manufacturers, an overall loss to the environment and consumers.

I will all ways buy Toyota

AFM delete it,problem solved

dont 0w20 xxxxxx is god oil 5w40 goood