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2004 Dodge Ram high RPM stutter

Tiny
STRMWTR1
  • MEMBER
  • 2004 DODGE RAM
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
Just started but truck runs normally as long as you don't push pedal all the way to floor. If you do it just bogs down and barely accelerates at that point. Same thing happens if you hit around 3500 + RPM WHILE DRIVING other than that it starts great and runs fine even at high speeds. It has new throttle body unit and sensor. It also pops codes po171 and p0174 and lastly po113 any suggestions appreciated.
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Tuesday, February 10th, 2015 AT 7:08 PM

7 Replies

Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
With those three combined codes, I would suspect a map (manifold absolute pressure sensor). Sensor.
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Tuesday, February 10th, 2015 AT 7:16 PM
Tiny
STRMWTR1
  • MEMBER
  • 4 POSTS
That is what I thought but this vehicle doesn't have map sensor
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Tuesday, February 10th, 2015 AT 7:20 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
It should be on the front of the intake, in the middle between the alternator and the a/c compressor.
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Wednesday, February 11th, 2015 AT 5:17 PM
Tiny
STRMWTR1
  • MEMBER
  • 4 POSTS
Ok changed map sensor and throttle body no change in performance any ideas
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Tuesday, February 17th, 2015 AT 3:58 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Hey buddy, I would suggest that you check your fuel pressure and see if it is in spec, you should also check fuel volume so you may want to take it to a shop for these tests. At this point it could be anything from fuel pump, intake gasket, 02 sensor, ect. But if I were you I would start with the fuel pressure/volume test.
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Tuesday, February 17th, 2015 AT 4:25 PM
Tiny
STRMWTR1
  • MEMBER
  • 4 POSTS
Ok last question :) going to replace fuel pump module on 2004 dodge ram 1500 5.7 some are telling me I need the fuel pump regulator as well and others say it is built into the fuel module it is a 26 gal tank. Any idea?

Thanks
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Tuesday, February 24th, 2015 AT 4:14 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Did you do any testing? If so what were the results? And to answer your question, it's all one unit. The fuel pump module or assembly.
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Tuesday, February 24th, 2015 AT 8:13 PM

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