Code P0507?

Tiny
FRANCISCO_1220
  • MEMBER
  • 2007 DODGE RAM
  • 3.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 146,900 MILES
My truck recently showed a code p0507 Idle control system/motor RPM higher than normal.
I’m aware that the ACV is in the throttle body as it is electric so I replaced the throttle body and re learned it and the code popped back up less than 10 miles. What can be the problem and how can I fix it? Thank you
Friday, May 2nd, 2025 AT 11:45 AM

7 Replies

Tiny
MECHTRIX
  • MECHANIC
  • 112 POSTS
Sounds like its either a vacuum leak or a clogged air control valve.
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Friday, May 2nd, 2025 AT 6:37 PM
Tiny
MECHTRIX
  • MECHANIC
  • 112 POSTS
But since you changed the idle air control valve when you got a new throttle body its most likely a vacuumed leak check all lines hoses parting line areas where a leak can occure. Good luck
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Friday, May 2nd, 2025 AT 6:47 PM
Tiny
FRANCISCO_1220
  • MEMBER
  • 3 POSTS
I don’t think it as an air control valve as the throttle body is electrical and I thought about the same thing a vacuum leak the throttle body is new, and it still threw the code.
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Friday, May 2nd, 2025 AT 6:48 PM
Tiny
FRANCISCO_1220
  • MEMBER
  • 3 POSTS
Thank you Mechtrix. I will inspect the hoses well and let you know if that was the issue. Thank you
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Saturday, May 3rd, 2025 AT 1:35 AM
Tiny
MECHTRIX
  • MECHANIC
  • 112 POSTS
Yes. Check for leaks but also check the IAC valve since the code indicates that the problem is there. Got to find it I believe on this vehicle it is held in by one bolt and pulls straight out and has a 2-wire plug.
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Saturday, May 3rd, 2025 AT 1:48 PM
Tiny
MECHTRIX
  • MECHANIC
  • 112 POSTS
Should be right near or on the throttle body.
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Saturday, May 3rd, 2025 AT 1:49 PM
Tiny
MECHTRIX
  • MECHANIC
  • 112 POSTS
If you pull it out you can sometimes clean them with an old toothbrush and some spray cleaner, but I usually just replace them since theyre usually pretty cheap. Hope this helps
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Saturday, May 3rd, 2025 AT 2:06 PM

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