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Why would a 1999 Pontiac Grand Prix GTP blow heat from the driver's side vents and cool air from the passenger side when the air conditioning is on?
Answer the dual climate control valve is bad Answer This has happened to me in the past when the Freon was getting low. Shorty… after this I found out I was completely out of Freon. IGNORE THE SECOND ANSWER. THE DUAL CLIMATE CONTROL VALVE IS BAD OR YOU SIMPLY HAVE THE DRIVERS SIDE ON HEAT.
Why do a 99 Olds Intrigue drivers side vent and driver side of the middle vent blow hot air when the air is on but the passenger side blows cold air even though both dials are set to cool?
I have heard a multitude of answers for this same problem which has plagued me now for almost two years. No solution has yet worked for me. Here is a laundry list from my mem…ory as to what may be causing causing the problem. 1. Low freon. A mechanic once told me that the car will act like this when it needs a freon recharge. Such did not solve my problem, however. 2. Stuck door. There is supposedly a "door" (for want of a better term) inside the heating/cooling system that regulates temperature and/or cabin airflow. The door opens and closes according to the temperature and and dual climate settings selected. If this door gets stuck, it causes hot to blow out drivers side and cool on the passenger side. I am suspicious of this theory. Why would hot air correctly blow out of both sides? I had another mechanic tell me this one. 3. temperature sensor improperly reset. I read online that if the battery gets disconnected and reconnected improperly, it will cause a malfunction in the sensor responible for delivering the proper temp through the a/c system. The solutions posted were disconnect the battery and reconnect with negative terminal first; check all fuses that reference climate control, a/c , heater, etc in manual, remove for 15 seconds, reinsert or replace if necessary. This did nothing for me. However, I personally associate this intermittent problem with a battery reset. My wife's car has electrical problems (don't get me started) which necessitate frequent battery replacement. Everytime the battery has been disconnected, the problem starts again. 4. Computer malfunction. I also read that the problem may stem from the climate control interface itself (i.e. the thing with all of the temperature knobs and buttons). Replacing this is supposed to fix the problem. I have not tried this, and frankly, I refuse to do so. The only current solution I have ever found is patience. The problem seems to simply disappear after a while (albeit a long while). My wife and I both have Intrigues (Gasp!). They both have the same problem(s). Nothing works for either. Good luck. If you have success post your results. Not Much of an AnswerMy 99 Intrigue often does this, and I have tried replacing the temp control head, plus the door reset sequence (disconnect battery, open both front doors, reconnect battery, start engine with climate control on AC with temp dialed all the way down). Neither worked. In fact, the temp control head replacement was worse than what was in there, so I had them reinstall the original. I called GM tech support and got a sheepish answer that indicated to me that the hot/cold air at the same time thing is a design flaw. If you wait several minutes (if you can stand it) with the climate control set the way you think it should be, the "computer" comes around eventually. I have noticed that the AC on a very hot day with the car sitting in the sun will usually come up blowing cold air out both sides (thank goodness). Usually when you get the hot/cold it is a moderately warm day, which apparently "confuses" the thing for a while. I'll never buy a climate control car ever again. Answer The car seems to do this after the battery is disconnected, I tried everything that I saw on the Internet. The only thing that worked for me (immediately) was to remove the a/c heat control unit from in the car, directly below your cars radio/head unit. Take the cover off and remove the two screws, pull the unit out, unplug the wire harness and let it sit for 30 seconds. It will reset itself plug it back and the a/c will work again. Should take less than 5 minutes to do. MOST IMPORTANT Or if unplugging the battery always remember to turn the a/c off before doing so. So that the a/c doors are shut when the system is reset. When replugging the battery they will start from the correct position and all will be fine.
Why does a Jeep Grand Cherokee's heat vents output cool to mild warm air until the sound of the air in the vents changes from a medium pitch to a low pitch and then output hot air.?
This is a design flaw in the blend doors for the heater control box. Jeep know about it and redesigned the box. For a more complete explanation, go to EBay and search HE…ATERTREATER.
Heat Pump Troubleshooting . If the unit works in the heat mode, then the problem is usually located in the outdoor unit.
Answer try closing the other two side vends then see if it works, if not u may have to unscrew the panel there might be something blocking it, if not sell your c…ar
Answer Can Answer Can any animals such as mice, chimpmunks, squirrels get into your chimney or any othe vent opening? Occasionally these things find a… way in, usually down the chimney, get trapped and die. Other possibilities include a pet consistiently urnating by a register or return grill, or standing or stagnet water that has been spiled or leeched in and created some variety of mold. If possible check you chimney where it meets the exhaust from your furnace or gas water heater, remove your air filter and inspect as much visually and scent to determine the area. You can try putting an air freshner (like the ones for cars). If all else fails call a chimney sweep or heating/cooling shop.
You are in an apt welectric heat new to you as you have always had gas and the vent is blowing out cool air rather than heat what causes this It's COLD?
Make sure the switch is clicked onto the heat side and that you have not selected recirculate. If that is not the case, then contact your apartment maintenance.
The furnance is not coming on.
2004 Yukon XL and two of the ac vents are blowing hot air while the others are blowing cool air what does that mean?
There may be a stuck vent door or an issue with the heater blower control head.
My 99 grand prix blows cool air on the passenger side and hot air on the driver side but it's full of freon?
This happened on my 02 Grand Prix. There is a switch that needs to be replaced, be prepared to pay about 200 bucks
1999 Pontiac Montana and there are 5 vents on the dash but only 2 of the vents are blowing cold air and the other 3 on the driver side are blowing barely cool air?
There are 2 filters you access in the glove box. If they are dirty you get almost no air. Clean or replace them and be amazed at the difference
My 2003 VW Jetta GLS heating and cooling blowing heat out even when I have it on vent and it's cold outside other times heat will not work at all and only cold air comes out what is wrong with it?
The first thing that you need to check will be to see if the controller in the dash is working the a/c and heater doors under the dash................
In Dodge Ram
I had this problem with my 1998 Intrigue. It began when the starter died and the battery was disconnected. When I took it in for repair, the mechanic told me the actuator was …bad, but as it turns out, it has two. He replaced the one on the right side but it began doing the same thing within a few days. At this point, I had already spent $300 and wasn't ready to chance another incorrect diagnosis. I tried disconnecting the battery cable for an hour to allow the actuators to recalibrate but this didn't fix. I replaced the left one myself, and this has corrected the issue. The actuator itself, cost around $165 if purchased from a parts store. The one on the right is located under the dash just left of the glove box. The one on the left is located right of the steering column.It's a fairly simple process once you get to the actuator.
Why won't my Jeep Wrangler's heating and cooling system work properly if the AC makes the air cold and the heater makes it hot but the air will only come out of the windshield vents?
There are many aspects to the in cabin environment controls. The fan on/off and speed controls, temperature controls, and where the air direction controls are separate. … The controls that determine where the modified air are directed are sometime of the slide control variety, a lever that pulls or pushes a stiff wire connected to dampers that allow or restrict air flow and there by directing it. Some vehicles have vacuum actuated air damper controls, push buttons or a slide lever change air paths in the control module that causes dampers to open or close and thereby direct the air flow from the fan motor. If the slide lever doesn't move easily or too easily the wire may have become detached. Sometimes vacuum hoses fall off under the dash and will cause like problems. In this case you may hear the sucking sound of the hose. Check your local library for a service manual about your make and model of vehicle. repairs of the heating and cooling controls are usually easily affected...
Sounds like the Blend Door Actuator arm is broken, common problem with the 97-98 Marks, around a $2,000 job with a $6.00 part, the dash has to be taken out unless you have a m…echanic that can change it without taking out the dash.
If you have a Heat pump, you must set the thermostat up for "heat pump". Then you must connect all the wires up according to the manual. If you do not have a heat pump, th…e wiring may be crossed or touching somewhere. Call a local heating and air conditioning company to trace out the problem.
Why would a mobile homes central electric heat system blow cold out from one side while blowing hot air at the same time from the other vents?
A duct has come apart under the home?