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Losing power and sounds like air blowing when I accelerate?

Tiny
BLONDEBEAUTY30
  • MEMBER
  • 2010 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 139,000 MILES
I cannot go over 20 MPH. I'm losing power, the car starts stalling and jerking. It also sounds like air is blowing, kind of like how an air compressor sounds, when I start up the car and it's even worse when I accelerate. No check engine is on, no trouble codes are showing on the reader, I don't know what to do.
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Monday, October 3rd, 2022 AT 9:25 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Yep, this happens when the catalytic converter is clogged up. To be sure here is a guide to help confirm the failure and I have included how to change the catalytic converter out in the images below.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

If the catalytic converter has fallen apart, you will need to clean the remainder of the exhaust system out including the muffler. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Tuesday, October 4th, 2022 AT 10:05 AM

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