Hesitates or Stalls on Acceleration

Definition: Momentary lack of response as the accelerator is pushed down. Can occur at any vehicle speed. Usually most severe when first trying to make the vehicle move, as from a stop sign. May cause the vehicle to stall if severe enough.
POSSIBLE CAUSE ACTION
Poor or contaminated fuel Check for excessive alcohol content
Recommend higher grade fuel

Fuel metering ^ Check air/fuel ratio, (02 sensor voltage).
^ Perform injector service. Fuel Injector Cleaning Procedure
^ Check fuel pressure (check vacuum line and return hose). Fuel System Diagnosis

Throttle body deposits Clean throttle body. Service and Repair