First start of the day, rough idle, erratic RPMs and shuts off?

Tiny
JOHN JACOBSON
  • MEMBER
  • 2002 ISUZU RODEO
  • 3.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
The rest of the day starts and runs normally. Throttle body was cleaned and PCV sensor replaced, no help.
Sunday, June 30th, 2024 AT 3:58 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Let's run the codes first to see if any are stored, this guide will help. Also, I have seen a bad engine coolant sensor cause this issue.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

This can be caused by a vacuum leak as well, use this guide when the engine is cold only:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please go over these guides and get back to us.

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Sunday, June 30th, 2024 AT 10:55 AM

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