surging/bucking during acceleration

2007 CHEVROLET COBALT
170,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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BACKYARDMECHANICPRO
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  • 6 POSTS
As i am driving with very little pressure on the gas the car will surge/buck kind of thing. It does not do it all the time usually if it is wet out or snow it seems. I am pretty sure it is not a transmission issue. i am leaning more towards coil ignition pack or fuel issue. any input would be appreciated. thank you
Feb 12, 2017 at 10:21 AM
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HMAC300
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  • 48,601 POSTS
try cleaning throttle plate on both sides and IAC hole they get gummy and will surge. then at night spray water from a bottle like Windex on coil/plug wires see what happen if leakage they will throw spark.
Feb 12, 2017 at 10:24 AM