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2000 Silverado 2500 6.0 hesitation

VinceWeiss
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VinceWeiss Enthusiast

VinceWeiss

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I have a 2000 Silverado 2500 6.0 that is having some hesitation/cutting out on acceleration. It’s weird it seems like if you ease into the throttle it doesn’t cut out but if you mash on the gas it acts like it wants to die. It does it in park and in drive. First noticed it when I was pulling my boat out of the lake and I could barely make it up the boat ramp, it was spitting in sputtering until it eventually seems like it cleared up and started going normal. I replaced the spark plugs, spark plug wires, fuel pump, fuel filter, ran seafoam through the gas, and change the air filter but it seems to not of helped there’s also no check engine light. What could be the issue, thanks!

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CamGTP Senior Enthusiast

CamGTP

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You could try unplugging the MAF to see if it better.

 

But at this point we can't just guess and throw parts at it. I would need this truck hooked up to my scan tool so I can watch live data to see what is going on.

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  • 2 weeks later...
PedalX3 New Member

PedalX3

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Check all the clamps that hold the intake air tube from the air filter box to the throttle body are tight. Also make sure the rubber connections points are not cut or leaking. Any air that bypasses the MAF is not measurable and can cause this symptom or even make it seem the MAF is at fault. I've seen this on other vehicles that use rubber bellows that split due to dry rot.

 

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