Question about 1999 Plymouth Voyager

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1999 Plymouth Voyager: the heat comes out of the defrost vents only, even when I turn the knob to floor vents. Any ideas on what the fix is?

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CHECK THE VACUM LINES AND ALSO CHECK AND MAKE SURE THE DOOR THAT IS UNDER DASH IS NOT STUCK IF SOMETHING HAS EVER BEEN SPILT ON THE DASH OR IF U USE SPRAY SOLUTIONS ON CLEANING DASH THAT WILL CAUSE A BUILD UP ON DOOR AND CAUSE IT TO STIK IT IS LOCATED UNDER DASH ON PASSENGER SIDE

Posted on Jan 20, 2009

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Why does turning vent knob (defrost, mix, dash,floor,etc.) have no effect?


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Jan 01, 2016 | Cars & Trucks

1 Answer

Dropped something down the defroster on a 99 plmouth voyager now it will not switch from ac to heat


Sounds like the item got caught in the blend door between the heater coil and the condenser. Unless you can snake something down the defroster port to snag it, the only way to get this fixed is to remove the vent box from under the dash. In most vehicles this requires removal of the entire dashboard, draining of the cooling system and evacuation of the A/C system before the box can be removed and opened. Sorry for the bad news.

Nov 25, 2014 | 1999 Plymouth Voyager

1 Answer

We have a 2000 plymouth grand voyager and the vents wont blow air hot or cold We turn tge knobs and they dont even feel like they are doing anything but on the rare occasion the vents do decide to blow air...


U have a vacuum leak so all of your controls for vent defrost floor etc. will work but intermittently or once in a gray moon this is so hard to explain because to fix this is not going to b a five minute job try atleast 5-10 hours of trial and err you have to track down the leak and I guarantee there is more than 1 regards Chris

Mar 03, 2014 | Cars & Trucks

1 Answer

Overheating


Couple of possibilities here. One is the heater core bypass valve that allows the coolant to flow to the heater core. Make sure that the vacuum tube has not come off of it. Should be under the hood just on top of the blower motor assembly. Let the engine get hot and check to see if the hoses going to the heater core are getting hot coolant flowing through them.

Does the air flow through the defroster, front vents, and floor vents when they are selected? If not, this can indicate a vacuum leak on the HVAC control panel or a failure of the switch.

Nov 24, 2012 | 1999 Plymouth Voyager

1 Answer

1998 plymouth voyager vents changes from hot to cold to top defrost vents down to floor all on its own


sounds like you have a broken vacuum hose for heater controls or vacuum reserve tank if controls changes when accelerating or going up steep hill, check your vacuum hoses from engine to inside controls

Sep 03, 2012 | 1998 Plymouth Voyager

2 Answers

I have a 1999 plymouth grand voyager


try ur ac in dash filter ive had that problem b4 but ur core is under the hood pass side big black box thing,couple bolts it should split in half or off firewall

Jun 21, 2009 | 1999 Plymouth Grand Voyager

4 Answers

Heating / air conditioning control stuck to front defrost vents


There is a vacuum leak under the hood. Find the vacuum line on the passenger side where it comes through the firewall and follow it to the engine. You system needs vacuum to operate and without it the default setting is on defrost for safety reasons.

Jun 19, 2009 | 1999 Dodge Durango

1 Answer

Cannot get heat out of floor vents -only defrost and dash heat


i had a simmiler problem on my 95 chevy pick up. on mine it would not chg. from floor to defrost, no matter where i put the selector. with mine it was the controls. if you go under solutions for k1500chevy gmc trucks it should tell you what your problem is, or give you an idea whats going on with yours.

Jan 12, 2009 | 1998 GMC Jimmy

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