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low idle problem when cold outside

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Old Dec 21, 2008 | 06:25 PM
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borndead's Avatar
borndead
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Default low idle problem when cold outside
well its not really cold out maybe 35-40, but cold for central texas

my 96 4L started idling around 250-300 rpm

dont know what it could be
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Old Dec 21, 2008 | 08:09 PM
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warming itself up.
these things have a mind of there own
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Old Dec 21, 2008 | 08:22 PM
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what kind of oil you running? 10w 30 may take a while to thin out, 5w 30 not long. just thinking outside the box.
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Old Dec 21, 2008 | 08:25 PM
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MAT sensor may be going out. It tells the computer to change your fuel air mixture based off of temperature.

At least that is how I interpreted it out of the book.
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Old Dec 21, 2008 | 11:37 PM
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mine dies when its really cold sometimes. all i do is drive it until it gets atleast above 100 and then it will idle fine again
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