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Hold light and gear problem

Tiny
RASOOL_92
  • MEMBER
  • 1993 KIA SEPHIA
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 1,400,000 MILES
Hold light blinks and the gear shift from the first gear to the third with out passing the second gear and never shifts to fourth gear. Any suggestions? Thanks.
Thursday, August 9th, 2018 AT 9:26 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
This sounds like you have a clogged catalytic converter which will change the vacuum reading if the engine causing the transmission not to shift to confirm the issue please go over this guide.

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

Please run down this guide and report back.

Cheers, Ken
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Friday, August 10th, 2018 AT 12:57 PM

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