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What is the cause of ac being mixed to defrost and dash vent plus auto temp control readout is dim?
It sounds like you have two separate problems. Incorrect routing of ventilation is usually caused by bad vacuum motors or loose vacuum lines, but remember that A/C is -supposed to be- routed to the defrost vents when controls are in the Defrost position. The dim temp control readout could be due to a number of causes, but probably isn't related to the other issue you describe.
What else can I help you with?
What is the cause of ac being mixed to defrost and dash vent plus climate control readout is dim on a 1998 corvette?
I will answer my own question, the a/c coming thru the defrost was due to the battery leaking onto a hose junction under the battery for the heater and eating it away and caused a vacuum leak. The dim readout was due to a bad head on the climate control, total cost at the Chevy dealer $680.00
Other than defrost none of the other panel air vents work on your 2001 windstar what is the cause of this?
vacuam hose to ac control is of
Defrost on windstar not working what is part needs to be replaced?
Where the air blows out control are vacuum operated.A more common problem is when the air is stuck on defrost only.The cause is essentially the same, so check out the "Related Question" below for where to go next
On a dodge ram 1500 why does the defrost only work if its on high?
The most common cause for the defrost not properly working is a malfunctioning blending door. The blending door might be stuck halfway open. This would cause the defrost not to work unless the fan is on high.
Could a faulty catalytic converter cause defrost system not to work properly?
No, the catalytic converter has nothing whatsoever to do with your defrost system.
Do you warm the pork steaks on full power on defrost mode to defrost before cooking?
This isn't likely to cause any problems. A viable solution would be to check for the "meat" section to find out exactly which strength to defrost.
Can being on birth control too long cause surgery?
no t can not
What would cause smoke to blow through the defrost of a 1990 Ford F 150 while the heater is switched on?
In many cases leaves can cause smoke to blow through the defrost of a 1990 Ford F 150
Can a bathroom scale stop working?
Yes, it can. If something is wrong with a spring, measure, the actual scale, the weigh readout, any of these along with many other factors can cause a scale to stop working properly. This could mean that the readout is wrong, or that it produces no readout at all. Like anything, a scale can break, too. You can either go to have it fixed or just go out and get a new one.
What would cause my air conditioning on my 2003 F-150 to blow on defrost?
A fan in the system.
Why does AC and heater blow air through defrost vents and will not blow air into cabin vents in your 2009 Mercury?
If the AC and heater in your 2009 Mercury are only blowing air through the defrost vents and not into the cabin vents, it may be due to a malfunctioning blend door actuator or a problem with the HVAC control system. The blend door actuator controls the flow of air to different vents, and if it’s stuck or malfunctioning, it may be directing all air to the defrost vents. Additionally, issues with the climate control module or vacuum leaks in the system could also cause this problem. A thorough inspection of the HVAC system is recommended to identify the exact cause.
Can a control arm bushing being bad cause shaking in the front end of a car?
Yes
