Fluctuating RPMs and intermittent stalling

Tiny
LAMARR DURAL MOORE
  • MEMBER
  • 2008 DODGE AVENGER
  • 2.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 177,242 MILES
My vehicle's RPMs drop after warmed up, I could be at a light an the RPMs drop then rise and it stalls every once in awhile. What do I do?
Saturday, February 13th, 2021 AT 5:47 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More then likely this is a vacuum leak. So let's start with this guide that will help check for a leak.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

This is also a guide that will help with stalling at idle as there could be some other causes:

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

The other likely cause of this is a fuel issue so we also need to check the pressure when this happens so we can make sure the pressure is not dropping and then it stalls.

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

Let's run through this info and we can go from there. Thanks
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Sunday, February 14th, 2021 AT 6:27 PM

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