Question about 2004 Dodge Ram 1500

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The air coming out of vents is very little even though the switch is on high and the blower motor sounds like it is running full speed

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  • Dodge Master
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Your vent controller is not working. Is the air coming out the defrost vents? If yes, this is the default when there is no vacuum to the switch. In this case, check the small plastic vacuum line that is connected to the engine intake manifold and going into the firewall. Make sure this line is connected to the manifold and the hose is not cracked. If this is good, go inside the car and see if you can trace that line to the control switch. If the line is good to the switch, see if you can pull the vacuum connector from the switch for troubleshooting. with the engine on, check for vacuum on the line from the engine with your finger. If the vacuum is there, your switch is probably leaking and needs to be replace. Any other questions, please reply.

Posted on Sep 10, 2010

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