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fast idle and winter is on the way

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Old 09-16-2011, 08:31 AM
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fast idle and winter is on the way

hey guys! a newbie here with a question.i have a 92 f150 with a5.0 and a really high idle. i have replaced the tps,map sensor, iac, and temp sensor,but still not fixed.checked all the vacuum lines and also pulled out a lot of hair in the process. i suspect a manifold leak some where under the upper intake. is there an easy way to check it?
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Old 09-16-2011, 08:38 AM
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Get a can of brake cleaner, and with the engine running spray around all the intake gasket areas. If there is a leak, the idle will change when you spray it...
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Old 09-16-2011, 09:07 AM
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