2003 Dodge Dakota RPM fluctulation

Tiny
JACKK121
  • MEMBER
  • 2003 DODGE DAKOTA
  • V8
  • 2WD
  • AUTOMATIC
  • 92,544 MILES
RPM fluctulate. While driving my RPM will fluctuale but I lose no engine speed. It does this at any speed and if I hit a bump in road the RPM will flucuate. Dodge dealer claim If was cause by my fuel injetors which I had cleaned and the problems is still occuring. Please help with this problems. Thanks
Monday, February 15th, 2010 AT 2:17 PM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
This can be tough if the check engine light hasn't come on. Has it? Also, have you checked fuel pump pressure? Have you checked for vacuum leaks?

Let me know.

Joe
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Monday, February 15th, 2010 AT 10:44 PM
Tiny
JACKK121
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The Check engine lights has not came on. I haven't had the fuel pressure checked and I has a diagnostic test done which reveal nothing.
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Tuesday, February 16th, 2010 AT 5:57 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
WIthout a check engine light, it becomes a guessing game. I would start with fuel pressure. IF you need directions, let me know.

Joe
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Tuesday, February 16th, 2010 AT 12:46 PM
Tiny
JACKK121
  • MEMBER
  • 9 POSTS
I had my feul pressure checked and it okay 49.2 psi. Checked vacuum leaks and located nothing. I don't know where to go from here. My truck is running prefectly other then the Flucation with the RPM.

As I stated it I hit a bump the RPM will shot up and then return to normal. Driving on thehighway it shot up and return to normal just to shot up again. Again I lose no engine power.

I have no problem with my transmission and I am not sure this would casue the RPM to shot up.

Therefore, do you have any other suggestion?

Again, the check engine light is not on and have not come on.

Thanks, Dennis
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Wednesday, February 17th, 2010 AT 5:42 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
DennisL

Have you checked the connection to the throttle position sensor?
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Wednesday, February 24th, 2010 AT 10:42 PM
Tiny
JACKK121
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I have not and will check the throttle position sensor connections today. I'll let you know once I complete checking the sensor connections.

Dennis
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Thursday, February 25th, 2010 AT 5:53 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Any luck, Dennis?
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Saturday, February 27th, 2010 AT 12:10 AM
Tiny
JACKK121
  • MEMBER
  • 9 POSTS
I had the connection to the throttle position sensor check and everything okay there. Still no check engine light and I am getting ready to have Purge control solenoid check out. I'll let you know the outcome.
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Sunday, February 28th, 2010 AT 7:43 AM
Tiny
JACOBANDNICKOLAS
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I look forward to hearing what you find.

Joe
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Sunday, February 28th, 2010 AT 2:12 PM

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