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running lean under load...

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Old 02-13-2013, 10:31 AM
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Default running lean under load...

hey i have a 2000 silverado. i swapped a 6.0 in the truck about 6 months ago. everything was goin fine til a couple weeks ago where it would run lean under acceleration like it was goin to die but it would come back it at first did it randomly now more often. i changed plug wires and fuel pump but it still tries to stutter under acceleration just not as bad..what else am i missing that it could be bc its driving me crazy ..thanks
Old 02-13-2013, 10:59 AM
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I have a gauge for that
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Sounds like the fuel pump, but you said you just changed that....did you change the fuel filter at the same time?
Old 02-13-2013, 11:51 AM
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yep i did. now someone said something about the fuel pressure regulator? i am out of ideas bc i figured the pump wouldve done it. thanks
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