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Wont stay running/cuts off while running

Tiny
CAZZ47
  • MEMBER
  • 2000 DODGE DURANGO
  • V8
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
I have replaced battery, alternator, spark plugs, all fluids, and she revs up on her own then cuts off if I'm at a stop light, after driving for a while and I turn it off it takes 20-30min before she starts up. A retired mechanic told me my engine could be flooding but he wasn't sure. If you could help me out with an answer id surely appreciate it thanks.
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Sunday, August 10th, 2014 AT 5:27 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Has the check engine light come on? Have you checked fuel pump pressure when the vehicle doesn't start? Have you checked the idle air control valve? Have you checked for vacuum leaks?
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Sunday, August 10th, 2014 AT 7:31 PM
Tiny
CAZZ47
  • MEMBER
  • 4 POSTS
I have checked all the above no problems, I have not checked the fuel pump pressure.
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Sunday, August 10th, 2014 AT 7:49 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Check the pressure to make sure it is within the manufacturer's specs. Also, if it is flooding (Fuel Mixture too rich) you should see black smoke from the exhaust. Is there any smoke?
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Monday, August 11th, 2014 AT 7:06 PM
Tiny
CAZZ47
  • MEMBER
  • 4 POSTS
There is no black smoke, I don't know what the manufacturing specs are for the pump pressure
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Monday, August 11th, 2014 AT 8:37 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
With the engine at an idle, it should be between 44 psi and 54 psi. Do you need directions as to how it is checked?
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Tuesday, August 12th, 2014 AT 4:10 PM
Tiny
CAZZ47
  • MEMBER
  • 4 POSTS
Yes please if you wouldn't mind
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Tuesday, August 12th, 2014 AT 4:13 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
The first one is directions. The second one is a video.

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

https://www.2carpros.com/articles/fuel-pump-pressure-and-regulator-test-video-all-cars
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Tuesday, August 12th, 2014 AT 5:29 PM

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