1994 Buick Skylark. Lot of hesitation and jerking when slight gas is pressed but goes away when gas is pressed hard and kicked into higher gear...also...power locks on doors...automatically lock when car is put in gear, but when car is parked i have to manually unlock car as it does not automatically UNlock as do most cars and the locks dont even when i press the button, i have to manually unlock each door...also...when driving and going around a right curve, car 'groans' or 'moans' up front but goes away once straightened out or turn to the left...
HI MY NAME IS JUAN:
I HAVE A 93 BUICK SKYLARK CUSTOM
AND I HAD THE SAME HESITATION.
I CHAGED GAS FILTER, AIR FILTER, AND USE SEA FOME IN MY GAS TANK AND USE IT ALSO TO CLEAN THE INTAKE SYSTOM, AND IT HELPED ALOT. TWO MONTHS DOWN THE LINE HADE THE SAME HESITATION AND IT WAS ONE OF THE INISION COIAL PACK WAS NOT GIVING THE ELETRICAL SPARK TO THE PLUG. I CHECK IT BY PULLING THE CABLE OFF THE SPARK PLUG WITH THE CAR RUNNING AND FOUND THE ONE THAT WAS NOT GIVING SPARK. I REPLACED THE PACK FOR THAT CILINDERS PLUG AND THE PROBLEM WAS GONE.
HOPE THIS CAN HELP YOU.
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