Miss Under Load

By heavyduty guy
October 28, 2007 in Gen III & Gen IV V8 Engines (LS-Based)

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heavyduty guy

Posted October 28, 2007

i have a 6.0 with 410 gears and 265 tires 2002 4x4 i seem to be getting worse mileage then most 9.5 mph at 70 it seems to miss when going up hills but it idels and acclerates great,what could this be?plugs wires coil or all? thanks

Rocco715

Posted October 29, 2007

Could be all of them or could be a fuel injector or maybe too low octane fuel

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