GM S10/S15/Sonoma Pick-Ups 1982-1993 Repair Manual

Poor Acceleration

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When the engine experiences poor acceleration characteristics, check for the following, as necessary:



Incorrect ignition timing.
 
Poorly seated valves.
 
Improperly adjusted accelerator pump stroke (carburetor equipped).
 
Worn accelerator pump diaphragm or piston (carburetor equipped).
 
Fault with the computerized engine control system.
 

 
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