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Engine hesitating, bucking?

Tiny
RTULL
  • MEMBER
  • 2002 HONDA CRV
  • 2.4L
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
My vehicle started hesitating and seemed like it was going to stall. I changed the coils and plugs. Still acting the same. It is firing better and occasionally actually runs quite normal. Not often though.
Tuesday, February 28th, 2023 AT 9:18 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
We need to run the codes first to see what's going on, also I would check the engine for vacuum leak by following these guides, please check the engine when it is cold only.

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

and

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

You could have low fuel pressure which is causing it. The pressure should be 330 - 380 kPa (3.4 - 3.9 kgf/sq.cm, 48 - 55 psi). Please check the images below on how to test the fuel pressure and change out the fuel pump.

Check out the images (below). Please let us know what happens.
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Wednesday, March 1st, 2023 AT 6:03 PM

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