5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

engine codes 311 & 314....

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Old 07-08-2006, 06:59 PM
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94ford5liter
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Default engine codes 311 & 314....

I ran the scanner on my car and it came up with codes 311 & 314. The codes basically say there is a problem with the Thermactor Air System. I was wondering if that is the thermostat or what it is exactly.
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Old 07-08-2006, 07:03 PM
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lookinforastang
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Default RE: engine codes 311 & 314....

isnt that the port on the front of the intake? i think someone brought it up last night.

i could be completely wrong tho so dont hold me to it lol
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Old 07-08-2006, 07:23 PM
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94ford5liter
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Default RE: engine codes 311 & 314....

anyone have more info on this? I guess it is also called the air injection system?
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Old 07-08-2006, 10:07 PM
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5.0_PR
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Default RE: engine codes 311 & 314....

I just fixed mine yesterday!!

Your local library should have ALLDATA, a diag. program that will allow you to get all the info you need on fixing this.

I looked it up, and on the pass. side there is a hose with two valves on it. That is the Thermal Sys they are talking about.

My vacuum line was broken near the solenoids, and I replaced it. 8 months of a check engine light vanished!

It's easy to test, and easy to get to; just remove the part of the airtube that covers it.



Check your vacuum lines carefully.

PM me if you still need help.
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Old 09-10-2007, 10:09 AM
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mojopony
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Default RE: engine codes 311 & 314....

On an sn95 aren't those solenoids inside the fenderwell?
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