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Old 05-19-2011, 06:56 AM
mdsutton48 mdsutton48 is offline
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Join Date: May 2011
Posts: 6
Default A/C switches from dash vents to defrost vents sporadically

Morning,

My ranger has started to decide on its own to blow air out of the defrost vents when the selector is set to either A/C, A/C max, or to air for the dash vents. The air switches back and forth from front vents to defrost vents. I have heard of possible vacuum leaks? How do I look for that? What else should I check for?
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2000 Ford Ranger XLT 2WD 3.0 V6 FFL
IPF Fog lights, Westin Safari bar, K&N air intake, Wet Okle seat covers, Gibson Cat back Exhaust.
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Old 05-19-2011, 12:54 PM
Rg1Baja Rg1Baja is offline
DirtFreeks Mtrspts #7299
 
Join Date: May 2011
Posts: 180
Default Re: A/C switches from dash vents to defrost vents sporadically

Most times it is a vacuum leak. Easiest way is while the truck is running spray carb cleaner on the vacuum lines. The truck rpms will change if there is a small leak.
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Old 05-19-2011, 07:42 PM
mdsutton48 mdsutton48 is offline
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Default Re: A/C switches from dash vents to defrost vents sporadically

Thanks I will check it out.
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2000 Ford Ranger XLT 2WD 3.0 V6 FFL
IPF Fog lights, Westin Safari bar, K&N air intake, Wet Okle seat covers, Gibson Cat back Exhaust.
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