2021 GMC Yukon w/40k miles began sputtering/jerking at slow acceleration

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Doubeleive

Wes
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I'll definitely try checking the fuel pressure. Any recommendations on purchasing the MAF online?

AC Delco Mass Air Flow Sensor 12714453
I wouldn't condemn the maf without further testing, but from what I recall they run around $70? best prices online are probably going to be rockauto or amazon, maybe ebay.
I would recommend oem
 

Doubeleive

Wes
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More Information for GM GENUINE 12714453
GM GENUINE 12714453
$40 on rockauto
for some reason I thought this was a 2020
you should be under factory warranty unless you are over mileage already?
 
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WPBMatrix180

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More Information for GM GENUINE 12714453
GM GENUINE 12714453
$40 on rockauto
for some reason I thought this was a 2020
you should be under factory warranty unless you are over mileage already?
I'm at 40 K miles, so over by 4k miles. Go figure !
 

Blackcar

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I believe power train 5 year 60000 miles on 21 Yukon.
 

travo87

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If ya haven't figured it out by now change out your fuel filter and maybe run a injector cleaner in there with a high octane fuel and or something to break up all that crud out the injectors
 

GMCnewbee

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Could be a fill-up of bad gas. I agree that a fuel filter might be a good idea. Also, put in a can of fuel system water remover. I think it's just alcohol but I forget what it is that breaks down water in gas.
 

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