1999 gmc sierra 1500 4.3l runs rough erratic idle no throttle response. replaced distributor w all new components replaced spider assy replaced crank shaft sensor drained fuel and replenished

Asked by Sep 05, 2015 at 03:24 PM about the 1999 GMC Sierra 1500 SLE Standard Cab LB

Question type: Maintenance & Repair

1 Answer

Take a look at the two gas filters, one might be clogged

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