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Stalls at engine start

Tiny
FIGNEWTON70
  • MEMBER
  • 2014 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
This is a developing problem (twice in the last two weeks) that I want to tackle early. When I start the car (smooth start), the engine immediately stalls. This will continue to happen until I tap the gas pedal, and then I do not have any problems. I think it is either the fuel pump, or else the fuel pump regulator. Does my car have a fuel pump regulator, or a pump sensor? And where is the part located?
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Tuesday, November 13th, 2018 AT 7:45 AM

1 Reply

Tiny
JONNYB1963
  • MECHANIC
  • 252 POSTS
I think we can safely say that the fuel pump is not the issue, as you say, the engine does run after you tap the accelerator. There are a few things that could cause this sort of behavior, the first link I supplied below runs you through some of the possibilities.

I would start looking at the Idle Air Control Valve because it is the easiest.
Here are some links to help:
https://www.2carpros.com/articles/stall-at-idle
https://www.2carpros.com/articles/how-a-idle-air-control-valve-works
https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

Hope that helps!
Jon
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Tuesday, November 13th, 2018 AT 9:01 AM

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