Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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Is the check engine light on? Have spark plug wires been replaced recently? Thanks.
This is a common symptom of worn wires, replace wires and problem should be taken care of. Let me know if there is anything else I can do to help. Thanks.
That points toward possible mass airflow sensor. Disconnect sensor to see if it runs better, if so you can try to clean first with approved cleaner but if that doesn't help replace. Let me know how it goes, thanks.