Engine jumps and sputters when cranking and idling

Tiny
ANGIEWALKER
  • MEMBER
  • 2003 CHEVROLET IMPALA
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Also, very low power when giving gas.
Sunday, April 3rd, 2022 AT 8:24 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,268 POSTS
Hi,

Is the check engine light staying on or flashing when the engine is running? Did this start all at once?

If the light is staying on or flashing, we need to have the computer scanned. If you don't own a scanner, most parts stores will do it free of charge, so I recommend it.

Here is a quick video showing how it is done:

https://youtu.be/b2IJGfImVvw

If possible, record it cranking and running and upload it for me to hear. It may help me. Also, let me know anything you can think of that may help me diagnose the issue.

Take care,

Joe
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Sunday, April 3rd, 2022 AT 8:34 PM

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