Will not stay running

Tiny
STEVEN86ALERO
  • MEMBER
  • 1999 OLDSMOBILE ALERO
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 198,700 MILES
Car shuts off after about 30 second and won't start for about 5 minutes. Runs perfect for the 30 second.
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Tuesday, December 30th, 2014 AT 10:43 AM

1 Reply

Tiny
KASEKENNY1
  • EXPERT
This could be a couple different issues and it depends on how it actually shuts off. Does it just suddenly stop like someone shut the key off? If so this is most likely the idle air control valve.

https://www.2carpros.com/articles/stall-at-idle

Here is a guide on how to service the IAC in general terms. Your IAC is a little different and the process is attached on how to remove it.

https://www.2carpros.com/articles/idle-air-control-valve-service

The next most common cause would be a fuel pump issue but this would be if the vehicle sputters a little and then shuts off.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I attached the fuel pressure spec which we will need when monitoring the fuel pressure. I would just hook up the gauge and start the vehicle and monitor the pressure. It should remain steady even after the engine is off. If it is dropping then it cuts off, the pump is the issue.

Let me know if there are questions and we can go from there. Thanks
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Monday, March 30th, 2020 AT 7:36 PM

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