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.
Alcohol In Fuel Test
Recommend higher grade fuel.

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

Throttle body deposits Clean throttle body.