Runs rough and bogs down when when accelerating

1999 DODGE DURANGO
200,000 MILES • 5.2L • V8 • 4WD
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BIG ROBERT
  • MEMBER
  • 2 POSTS
Engine bogs down when when I accelerate. About at 45 mph . Then after engine warms up it stops . This is mainly in summer time. I had new plugs,wires and distributor cap . Plus new fuel pump . In last year . Could it be the TPS , air idle control MAP sensor or even clogged catalytic converter? I just don't want to spend good money . Any suggestions?? I am pretty good on trouble shooting.
Aug 20, 2020 at 1:29 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

I would check the fuel pressure to be sure it is correct.

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

I would also check the back pressure on the cat converters to be sure they are not blocked.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/engine-hesitates

Roy
Aug 20, 2020 at 1:57 AM
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BIG ROBERT
  • MEMBER
  • 2 POSTS
I will look into these options. Thank you gentlemen for such a quick response!! I will post my findings in a week.
Aug 20, 2020 at 2:18 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
You are welcome.

Keep us updated.

Always glad to help.

Roy
Aug 20, 2020 at 2:19 AM
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