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Acceleration taking a while to pick up speed

Tiny
JOHNSONSIMON23
  • MEMBER
  • 2007 SATURN ION
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 165,853 MILES
When I am at a red light or going from idle to accelerating the car takes like 10-15 to pickup speed but the rpm's rev up. After I get speed its okay or if I am on a high it's okay, but it only happens when I stop and then go to drive again.
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Sunday, March 1st, 2020 AT 2:56 PM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

It sounds like the catalytic converter is clogged not allowing the engine to breathe.

It will give you low power. You need to do a back pressure test. You could remove the front O2 sensor and drive the car and see if it runs better. That will confirm the converter.

Roy
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Sunday, March 1st, 2020 AT 4:28 PM
Tiny
JOHNSONSIMON23
  • MEMBER
  • 3 POSTS
Could it also be spark plugs or coil pack?
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Monday, March 2nd, 2020 AT 3:43 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
If it was one of those, it would misfire and the check engine light would be flashing on and off.

Roy
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Monday, March 2nd, 2020 AT 4:29 AM
Tiny
JOHNSONSIMON23
  • MEMBER
  • 3 POSTS
Okay and is it cheap to fix a clogged converter?
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Monday, March 2nd, 2020 AT 12:52 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It needs to be replaced, not cleaned. You cannot clean a catalytic converter.

Roy
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Monday, March 2nd, 2020 AT 12:57 PM

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