car jerking after about twenty minutes

2005 TOYOTA AVENSIS
132,000 MILES • 4 CYL • 2WD • AUTOMATIC
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CHRIS TAPUOSI
  • MEMBER
  • 2 POSTS
Hey there, my car goes for about 20-30 minutes then starts jerking and RPM starts going crazy.
Dec 18, 2019 at 4:17 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

Is the check engine light on?

Does the transmission seem to be working properly?

Roy
Dec 18, 2019 at 6:55 PM
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CHRIS TAPUOSI
  • MEMBER
  • 2 POSTS
No check engine light on but i think transmission is fine. the car just starts jerking after half an hour and i don't know what's wrong with it.
Dec 18, 2019 at 8:29 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
I would suspect a clogged catalytic converter. I would have this checked as it would give you all those symptoms.

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

Roy
Dec 19, 2019 at 12:36 AM
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