Hesitating, randomly

Tiny
JMWOODFAE
  • MEMBER
  • 1998 NISSAN LUCINO
  • 170,000 MILES
Car has been hesitating on and off for about six months now with no engine light coming on. Have had fuel filter replaced, air flow meter in throttle body replaced, 02 sensor replaced, spark plugs replaced, serviced, diagnosed by Nissan with no results. Please help.
Friday, February 1st, 2019 AT 2:56 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,144 POSTS
Hello,

This sounds like an intermittent PCM failure or the catalytic converter is coming apart sometimes clogging the exhaust system. Here is a guide to help check the catalytic converter:

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

This guide can help as well:

https://www.2carpros.com/articles/engine-hesitates

Please run down these guides and report back.
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Saturday, February 2nd, 2019 AT 2:35 PM

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