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Idle position sensor

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  #1  
Old 12-12-2011, 09:53 AM
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Idle position sensor

Anyone know where it's located on a 2001 5.4? Truck won't idle now that it's cold until it warms up. Thanks
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  #2  
Old 12-12-2011, 03:33 PM
glc glc is offline
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It's not a sensor, it's an IAC (idle air control) valve and it's attached to the throttle body.

Click the image to open in full size.
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  #3  
Old 12-12-2011, 04:46 PM
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Great I found it back by the firewall. Don't know if it's my problem or not. Thanks
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Old 12-13-2011, 04:12 AM
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Pull it and clean it. Spray some WD-40 into it and work the plunger with a screwdriver till it moves freely. See if that helps.
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  #5  
Old 12-13-2011, 07:03 AM
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Yea that's what I did it was dirty. Ford wanted 121.00 for a new one. I'll try it this morning after it cools down over nite. Thanks
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Old 12-13-2011, 02:55 PM
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Motorcraft IAC is $65.79 at rockauto.com, and a gasket is $1.11.
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Old 12-14-2011, 10:23 PM
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i have a 97 f150 4.9 liter doing the same thing,could that be my problem too?
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  #8  
Old 12-16-2011, 10:36 PM
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Quote:
Originally Posted by robert york View Post
i have a 97 f150 4.9 liter doing the same thing,could that be my problem too?
Well it fixed mine.
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  #9  
Old 12-17-2011, 12:06 AM
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I've used the autozone IAC for a few years now with no issues. seems like it was 39.95 or so..
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  #10  
Old 12-17-2011, 12:08 AM
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it could be the throttle position sensor also.

Mine went out and it wouldn't idle well plus the jacked the transmission all up.

It's on the throttle body. Easy fix.
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Thanks for the SIG krusedisc!
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  #11  
Old 12-17-2011, 11:37 AM
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^^^^ Right. Voltage check instructions here: how to check & set your TPS voltage on a single bore throttle body.
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  #12  
Old 12-21-2011, 11:21 PM
glc glc is offline
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Quote:
Originally Posted by robert york View Post
i have a 97 f150 4.9 liter doing the same thing,could that be my problem too?
I've never seen a 1997 with a 4.9.
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  #13  
Old 12-27-2011, 09:48 PM
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well i guess i have the only one with a 4.9 liter in it.
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  #14  
Old 12-27-2011, 10:19 PM
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Quote:
Originally Posted by robert york View Post
well i guess i have the only one with a 4.9 liter in it.
Is that a 4.6L bored over .20? J/K

You have a 4.6L if you have a 97 bud

Last edited by Toyz; 12-27-2011 at 10:21 PM.
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  #15  
Old 12-27-2011, 10:37 PM
glc glc is offline
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A 4.9 is an inline 6.
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