Expedition, IACV change
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Junior User
Joined: Jul 2003
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Expedition, IACV change
I believe I have a bad IACV on my 2000 Expedition. I have to drive with one foot on the brake and another on the gas to keep it from stalling due to low RPM. No engine lights or codes come up at all. Sometimes it runs perfect. Usually in the morning it is bad. Can anyone tell me how difficult this is to change? It looks like you need to be Gumby to get behind the IAC to exchnge it?
Postmaster
Joined: May 2002
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From: Annapolis, Maryland
Expedition, IACV change
First off, welcome to FTE 
The IAC does require a bit of gumby-ness to change, but it's not impossible. I've got big fat hands with little stubby fingers, and I changed it out in about 30 minutes.
XXL
The IAC does require a bit of gumby-ness to change, but it's not impossible. I've got big fat hands with little stubby fingers, and I changed it out in about 30 minutes.
XXL
Posting Guru
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Expedition, IACV change
I have a 1999 4.6, and once you unbolt the plastic "4.6" cover over the induction system, it's a matter of unplugging a two-wire harness and undoing two small bolts to have this little PITA in your hand.
I understand the 5.4 is a little tougher to access.
I understand the 5.4 is a little tougher to access.
Senior User
Joined: Sep 2002
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From: N Richland Hills, TX
Expedition, IACV change
I thought I was quite the mechanic until I bought my Expy! I don't even know what an IACV is. Fortunatly it's new and under warrenty.
I will be the first to download BigMatt's info!
I will be the first to download BigMatt's info!
Freshman User
Joined: Jun 2003
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From: South Carolina
Expedition, IACV change
Your Expy is a special creature and by becoming the caretaker of one, you are now no longer a mere mortal mechanic....
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Freshman User
Joined: Jun 2003
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From: South Carolina
Expedition, IACV change
Is this also known as the "idle speed control" ? I was looking for it on fordpartsonline.com and it's the closest that I can find. It's about 60 bucks.
Bobby
Bobby
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Posting Guru
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Expedition, IACV change
As per Ford's Service Manual.
In this case, the engine computer has to become reacquainted with the new IAC. Disconnecting and reconnecting the battery will trigger this learning process.
Of course Ford, being hyperconservative, would suggest that the battery must be disconnected before putting air in the tires if they could get away with it...
In this case, the engine computer has to become reacquainted with the new IAC. Disconnecting and reconnecting the battery will trigger this learning process.
Of course Ford, being hyperconservative, would suggest that the battery must be disconnected before putting air in the tires if they could get away with it...
Logistics Pro
Joined: Oct 2000
Posts: 3,960
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From: All over Texas
Expedition, IACV change
Of course Ford, being hyperconservative, would suggest that the battery must be disconnected before putting air in the tires if they could get away with it...
You don't necessarily have to disconnect the battery before starting the IAC valve replacement, but like Paul mentioned it is wise to reset the PCM immediately after replacement/before starting it back up so the PCM can "re-learn" with the newly installed component.
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Expedition, IACV change
If you have an Oreilly store near by call them. I work at one in Houston and we don't keep them in stock but our wharehouse does which means that we can get them same day or next day. If I remember right the Motorcraft part number is CX-1877 and I think that it sells for a little under $60. Hope this helps you guys.
Logistics Pro
Joined: Oct 2000
Posts: 3,960
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From: All over Texas
Expedition, IACV change
Originally posted by verbal kint
If you have an Oreilly store near by call them. I work at one in Houston and we don't keep them in stock but our wharehouse does which means that we can get them same day or next day. If I remember right the Motorcraft part number is CX-1877 and I think that it sells for a little under $60. Hope this helps you guys.
If you have an Oreilly store near by call them. I work at one in Houston and we don't keep them in stock but our wharehouse does which means that we can get them same day or next day. If I remember right the Motorcraft part number is CX-1877 and I think that it sells for a little under $60. Hope this helps you guys.
Funny, my neighborhood O'Reilly told me it was a dealership only part.