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Surging/bucking during acceleration

Tiny
BACKYARDMECHANICPRO
  • MEMBER
  • 2007 CHEVROLET COBALT
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
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
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Sunday, February 12th, 2017 AT 10:21 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 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.
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Sunday, February 12th, 2017 AT 10:24 AM

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