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Engine hesitates when accelerating

Tiny
JCLEMO
  • MEMBER
  • 1997 NISSAN HARDBODY
  • 2.4L
  • 4 CYL
  • 2WD
  • 237,000 MILES
Hello, in previous posts engine will not exceed 2,500 rpm resolved. Diagnostic showed MAF sensor replaced $126.00.
Engine responds like it should. Finally. Now the engine hesitates when accelerating. Bucks upon acceleration until rpm's exceed 2,000.
The engine is rebuilt but does not have the snap it had before. Power loss is noticeable. Timing is very close if not perfect. Thanks for any and all replies. JC
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Wednesday, January 9th, 2019 AT 8:02 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,356 POSTS
Hello,

This sounds like a TPS sensor is not working right but we should run the codes to see what comes up. here are two guides to help us get started:

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

and

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

Please run down these guides and report back.
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Thursday, January 10th, 2019 AT 12:28 PM

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