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Stumbling

Tiny
ORGASMICA
  • MEMBER
  • 2000 CHEVROLET S-10
  • 1.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 88,000 MILES
I have a pick up truck. It acts like it is gasping for air/gas when you are starting it or getting her moving. She chugs and pukes and sometimes backfires. I have replaced both O2 sensors and the catalytic converter is clear. I have used carburetor cleaner, and now I was recommended this product called "Sea Foam Spray" engine cleaner and lube. Did not work. Help! Beth
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Wednesday, September 6th, 2017 AT 9:46 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,110 POSTS
Hi Beth,

I know you might have done this already but I need to ask, have you replaced the spark plugs recently? If not I would start there and use AC Delco plugs.

Here is a guide that will give you an idea on how to do the job:

https://www.2carpros.com/articles/how-to-change-spark-plugs

This guide can help as well.

https://www.2carpros.com/articles/engine-hesitates

Please let us know what happens so it will help others.

Cheers, Ken
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Thursday, September 7th, 2017 AT 10:12 AM

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