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2003 silverado stuttering at idle


Taco2131

Question

Help me please, I was driving at 60mph n it felt like my truck missed n it did it a few times in a row. So I parked it n at idle it cuts out n sounds like it's missing. I press the gas pedal n it's almost like it wants to stall it. There are no leaks anywhere. Any help would be nice. I can not figure this out n I have a baby on the way within a month n would like to have this out of my way

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I'm sorry in advance if I posted this in the wrong area, I just had tapatalk installed for this app n I'm still trying to figure it out. I was told to try my fuel filter. But I'm at a loss at this point.

Will do sir, getn ready to run to orielleys n have them run the scanner on it.

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may have plugged up the new filter too...

That's what I thought too. This thing is back n forth on me. Was driving it a couple hours ago after leaving the parts store n check engine light came on so I ran to another one n put the scanner on it. P0420 catalyst system efficiency below threshold (bank1). any ideas??

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I hope not. I changed the fuel filter yesterday morning n it ran fine all day n then I left my buddies house drove about 20 miles that night headn home n it started again. Would an intake gasket do that??

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It could but it could be many other things. What codes did it throw?

It didn't throw any codes at all, just ran up to the parts store n it says there were no codes stored on my computer. It's been running fine today. I wondered if maybe some crud from the old fuel filter was still in the lines when I changed it n last night I got some Heet n put that in along with filling it up.

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