Acceleration problem

2002 NISSAN PATHFINDER

200,000 MILES • 3.5L • 6 CYL • 4WD • AUTOMATIC

ABDUL BASITH MJ

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I bought the vehicle listed above which was stopped for a long time. I charged the battery and it did not work, so I asked a local mechanic and he said the fuel pump is gone, so I got it replaced with one from scrap. Then it worked fine for a day, next day it started accelerating slowly and even it gets turned off sometimes. I asked two mechanics locally and one of them told me it's the fuel pump motor and other said fuel filter.
Any idea why is this happening?

Jul 15, 2021 at 9:32 AM

SQM

CERTIFIED EXPERT
6,383 POSTS

Hello,

This could happen for several different reasons. You could have a clogged in the fuel line/filter. Could have a fuel hose that might have collapsed.
Have you checked the fuel pressure?

Here is a guide on how to check fuel pressure:

https://youtu.be/peh7-pFycyc
https://youtu.be/aITQclp7zIE

Is the check engine light on? If so do you know the codes?

https://youtu.be/ahK_eucFi-k

Here is an article you might find helpful:

https://www.2carpros.com/articles/symptoms-of-low-engine-power

Check out this video as well:

https://youtu.be/U1RoG3I-Oww
https://youtu.be/dCjmRL3p4Cs

Let me know of any questions.
Thank you.

Images (Click to enlarge)

Jul 15, 2021 at 9:45 AM