SPONSORED LINKS

Stalling at idle?

Tiny
BRANDONDAONE
  • MEMBER
  • 2003 FORD MUSTANG
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 168,000 MILES
Hello, I recently replaced the idle air control valve and changed a hose but when I tried to start back up it stalled out immediately and or idles very low at 500. I am wondering what my next course of action would be. I replaced it with the Duralast IAC and at the time of this I took the negative battery terminal overnight to reset the ECM.
Image & Videos (Click to make bigger)
Thumb
Thumb
Thumb
SPONSORED LINKS
Tuesday, January 7th, 2025 AT 8:08 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,983 POSTS
Hi,

Was the original IAC doing the same thing? Are you sure there are no engine vacuum leaks around where you were working?

Check to see if there are leaks. I have a feeling that is part of the issue.

Here is a link that explains how to check:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Next, I would remove the IAC again and inspect where it connects to the vehicle, Check if there is any carbon build up or anything that could block the air flow.

Let me know what you find.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, January 8th, 2025 AT 7:29 PM

Please login or register to post a reply.

Related Engine Stall At Idle Content

Engine Stalls After Dead or New Battery
GUIDE
Engine Stalls After Dead or New Battery
So you installed a new battery and now the engine stalls? You have done nothing wrong because believe it or not this is normal. The engine computer has a learning cycle...
VIEW MORE

Sponsored links