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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

engine idiles rough when cold only

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Old Dec 14, 2008 | 02:56 AM
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Default 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?
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Old Dec 14, 2008 | 09:05 AM
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Get that code read and post the number or numbers here and we will help you out.
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Old Dec 30, 2008 | 07:58 PM
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The codes are p0174 & p0171
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Old Dec 30, 2008 | 08:41 PM
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First thing to check is the PCV elbows for any holes.
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Old Dec 31, 2008 | 06:15 PM
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Check this out https://www.f150forum.com/showthread...t=idle+control
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Old Dec 31, 2008 | 10:35 PM
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IAC codes are P1504, P1505, P1506, and P1507. All manufacturer specific.
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