engine idiles rough when cold only

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Dec 14, 2008 | 02:56 AM

xman21

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engine idiles rough when cold only

I have a 2001 f150 4x4 5-4 triton v 8 The service engine soon light is on. It idles rough but only os a problem when it is cold outside. any ideas what this might be?

Dec 14, 2008 | 09:05 AM

torkum

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From: Lebanon, TN

Get that code read and post the number or numbers here and we will help you out.

Dec 30, 2008 | 07:58 PM

xman21

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The codes are p0174 & p0171

Dec 30, 2008 | 08:41 PM

torkum

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From: Lebanon, TN

First thing to check is the PCV elbows for any holes.

Dec 31, 2008 | 06:15 PM

IA_F150

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From: Iowa

Check this out https://www.f150forum.com/showthread...t=idle+control

Dec 31, 2008 | 10:35 PM

torkum

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From: Lebanon, TN

IAC codes are P1504, P1505, P1506, and P1507. All manufacturer specific.

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