After engine is warmed up, try to restart it starts ok but it stalls?

Tiny
ELIAS HACHEM
  • MEMBER
  • 2004 LEXUS RX 300
After engine is warmed up, try to restart it starts ok but it stalls if you dont push on gas peddle, it runs as long as you keep it running
Thursday, September 23rd, 2010 AT 1:51 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This is most likely one of a couple issues. So, let's start with checking them off the list.

Here is a guide that will help with getting us started with this issue:

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

The first most likely issue is the idle control valve is dirty or needs to be replaced. On this vehicle this is the throttle body but here are a couple guides showing the different styles.

https://www.2carpros.com/articles/throttle-actuator-service

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

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

If this is clean and not the issue, then the next likely issue is the fuel pressure is not correct. So that means we need to check the pressure and find out what it is to know if this is the issue.

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

Please run through this info and let us know what you find. Thanks
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Tuesday, December 21st, 2021 AT 4:16 PM

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