IAC issues no dtc

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Aug 29, 2012 | 08:29 PM

britt

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IAC issues no dtc

Guys...my 2000 v-10 sd is stalling out on me. It started a while back occasionally it would die right after start up, once in a while. now its up to several times a day and even when stopped at a red light. I suspect its the iac valve...so I pulled it last week and cleaned the carbon off. you know the feelng when you THINK you've fixed it and then, damn it does it again... will the IAC throw a code ? ive cleaned the maf as well . I have a new motorcraft IAC valve , but wanted to double check with you guys before I tore into it. Thanks

Aug 30, 2012 | 12:10 AM

Monster-4

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From: Millersburg, OH

Bad IAC will not set a DTC as far as I know. Can you get the truck to start and idle by using the accelerator?

Aug 30, 2012 | 12:21 AM

khadma

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From: on da beach

Air leak after MAF can cause issue.

Aug 30, 2012 | 05:50 AM

britt

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guys...thanks... yes i can hold slight pedal and shift into drive and it will stay running.

how to check for air leak after MAF ?

sorry so short...trying to get to work...thanks

Aug 30, 2012 | 09:21 PM

mikeismadness

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From: laporte in

The IAC will not cause a CEL or DTC. Sounds bad to me. Cleaning them doesn't always do the trick. Replace it since you have it.

Aug 31, 2012 | 06:39 AM

TrdLtly

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From: SE Missouri

If the new IAC doesn't fix it then.... I would suspect the COP's. You could have one or two failing although usually you would only see it stall in gear and not right after start up. IAC, vacuum, MAF are about it for start up.