Gear box problem

2005 DAIHATSU SIRION
75,000 MILES • 1.0L • 4 CYL
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SAMUEL SUNDAY
  • MEMBER
  • 2 POSTS
Showing overdrive and is changing
Aug 11, 2018 at 11:07 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,554 POSTS
More detail would be good but it sounds like you could have a plugged catalytic converter. Here is a guide to help us confirm the issue:

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

Please run down this guide and report back.

Cheers, Ken

Aug 14, 2018 at 3:43 AM
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