Losing power

Tiny
SYMMON
  • MEMBER
  • 2008 NISSAN SERENA
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 123,000 MILES
My vehicle loses power on hilly areas especially after driving for some distance. I have changed the fuel pump but the problem is still there.
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Saturday, December 15th, 2018 AT 4:28 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi and thanks for using 2CarPros.com.

Often times, a plugged catalytic converter or partially plugged, will cause a power loss. Based on your description, that is my first suspect. However, you should consider testing fuel pressure to ensure there is not a restriction or an issue with the regulator.

Take a look through this. First is a description of the symptoms related to a catalytic converter problem and the second describes how to test.

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

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

Let me know if that helps or if you have other questions.

Take care,
Joe
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Saturday, December 15th, 2018 AT 9:53 PM

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