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 Test fuel for excessive alcohol content. Alcohol In Fuel Test
Recommend higher grade fuel

Fuel metering Check air/fuel ratio, by measuring 02 sensor voltage.
Perform injector cleaning procedure. Fuel Injector Cleaning Procedure
Check fuel system pressure.

Throttle body deposits Perform throttle body minimum airflow test.
Clean throttle body.