Acceleration Shock

Most likely cause is ignition break down under acceleration load.

Connect scan tool to data link connector, located under instrument panel. Turn ignition on. Using scan tool, check for Diagnostic Trouble Codes (DTC). Turn ignition off. If DTCs exist, go to appropriate test in SELF-DIAGNOSTICS - SEBRING COUPE & STRATUS COUPE - 2.4L article. If no DTCs exist, check ignition coils, spark plugs and spark plug cables. Repair as necessary. Recheck symptom.