Question about 2000 Jeep Grand Cherokee

Open Question

2000 Jeep Gran Cherookee air flow for heat/ac isn't coming tru,vent door may be stuck closed /?

I know the heat and A/C is working correctly, and the fan is definitely working, it seems as if an unseen vent door is closed/stuck,I can feel the warm, or cold air seeping out, but no force behind it

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 44 Answers

SOURCE: air conditioning and heating

The vacuum line on the drivers side of the intake manifold just below the throttle body fell off.

Posted on May 27, 2008

Ad
  • 2 Answers

SOURCE: Heater problems on my 2000 Jeep Grand Cherokee. Please Help!!

THis is a know problem with Jeep GC. If only one side is cold and the other is hot and there are no controls error codes. It is likely a broken temperature blend door on the faulty side (w/ dual controls). Dealer charges a lot to fix ~$800. There is a kit and instructions sold on EBAY to replace the part for $100. Seller claims that a relative novice can fix w/o removing the entire dash board as the dealer does. Has sold hundreds of kits....people seem satisfied....you may check it out. Search Heater Blend Door Jeep on ebay. Replacement parts are aluminum instead of OEM plastic.

Self Diagnostics on HVAC system. Jeep GC has built in diagnostics and will return error codes on the temp display if it is otherwise. Simple to display.
1) Press A/C and Recir button simutaneously
2) Rotate driver temp control knob clockwise then release buttons
3) If no controls error a code of "0" or "00" will be returned.
4) Error codes listings can be found on-line if anything but zero

Dealers charge $45 to run the same check

Posted on Jan 21, 2009

phoenixinks
  • 89 Answers

SOURCE: 1997 Jeep Grand Cherokee Heating/AC Problems

there are a couple of things you should check. first thing check that the fan and swirl cage are still together. this can be done two ways. simply turn either the ac or heat on and turn the blower up to hi quickly and listen to see if you hear the whine of the motor along with the force of the air go up. if you only hear the whine of the motor go up, there is your problem. most require a locking washer or a pressed cap. you can either be enginuitive on how you get it to stop spinning or take it to an automotive mechanic. next thing that could be wrong is the speed control knob could be broken. you can test that by either hooking up a known good blower motor and turning it up and down. seeing if it changes speeds or testing it with a multi meter. now if its air temp your having a problem with directly under the center of the dash behind a black plastic panel there is an ambiant temp baffle that controls just what its name is. there is a servo attached to it via a metalic rod. that is the only other thing i can think of..

good luck

Jason

Posted on Jan 25, 2009

  • 31 Answers

SOURCE: 2005 jeep grand cherokee ac blows cold only on drivers side

I agree, these vehicles have a problem with the blend doors and since the accuators hit the door when it opens and closes, it breaks the doors. and it's a huge job to replace them.

Posted on Mar 12, 2009

MNfisherman
  • 11896 Answers

SOURCE: Jeep AC blows cold air at defrost and feet but not through vents

There is a flap that directs the air. the flap is controlled by a vacuum actuator. This is located inside the venting. The actuator is connected to little vacuum hoses that attach to the temperature control switch. Either the flap is stuck, or the actuator has gone bad.

Posted on Jul 01, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why does My thermostat Not switch between ac,heat,defrost . there's cold air coming out of vents but not cold enough to be ac. Initially when this started the ac was blowing hot air


If the air flow cannot be controlled from vent/defrost/floor you may have a blend door issue. This is an electric motor that operates a door in the heating system to control airflow. There are usually 3 motors controlling airflow direction,heat and recirculation. The Ac not blowing cold may also be another problem. If the AC is operational, the compressor will be engaged and the Ac low pressure line under the hood will bw cold. If this is all ok then a blend door issue should be suspected

May 09, 2015 | 2006 Jeep Grand Cherokee

1 Answer

Heat comes tru passengers side console vents and normal thru drivers side


look under dash to make sure vent door is working proper

Apr 20, 2014 | 2010 Ford Flex

1 Answer

Heating, AC and vent problem


The actuator door that is behind the dash that closes off the heater core from shooting hot air thru the vents might be your problem. When you turn on your ac the actuator shuts the door to prevent the air from flowing thru the heater core into the cabin, this may be your problem if everything else is working properly. Let us know.

Oct 03, 2013 | 1995 Buick Park Avenue

1 Answer

Ac comes out heat vent


I would say the blend door is stuck or something happened to the selector on the dash. The system uses engine vac to move the blend door and direct air flow. If the vac source fails, the system is supposed to default to the defroster position.

Jul 15, 2012 | Chevrolet S 10 Cars & Trucks

1 Answer

Heat coming from vent when nothing is on. AC is noisy when turned on but is not blowing out cold air. What is causing this?


Could be a blend door problem. On most modern cars the coolant flows thru the heater all the time, and the HVAC system controls the cabin temp by opening and closing vent doors. When you turn or slide the temp selector it makes the blend door or doors open and close for the heater core and A/C evap.
I would have someone check under the dash and see if the doors are moving.

Jun 27, 2012 | Cars & Trucks

1 Answer

Buick Rendezvous Heating have Problem


Not a problem. I'm glad to help. As far as the vents, yes they run by vacuum. If the blend door or other door isn't opening or closing, you could draw cold air from one vent and warm in another.

Give it a try and let me know if you find anything. If you can't, I'll see if I can dig a vacuum diagram for the system ,may be you can find your problem

www.xcardiag.com

Apr 12, 2012 | 2003 Buick Rendezvous

1 Answer

My ac was working fine then one day it stopped and now only hot air blows out the mechanic said the ac is fine and works good but there is a vent door that switches the ac to heater and he said it was...


There is a blender that controls the air flow to go through the heater core for heat, and the evaporator for AC. It very well could be stuck.

You maybe able to try and get it to get unstuck by running the cars AC and switching from heat to AC back and forth and see if it gets unstuck. Just turn it on full blast and go from heat to cool.

If that fails, then you may need to service it. There should be a Lever Marked VENT under the dash, usually by the Brake and other pedals on the Driver's Side. Close the VENT and that will stop the Air from coming in and leave the A/C Blowing through the outlets(Vents).

I also read this online if you have an electronic climate control. "On climate control press off and heat button and let go quickly. Then press automatic. The display will start rotating eventually displaying a code 025,125 , 024 etc. Then press defrost to stop. You may hear blend door operating atb that time. It worked for my climate control."

Jun 11, 2011 | 1996 Lincoln Town Car

1 Answer

I have a 2000 Lincoln LS. I replaced the motor over a year ago. I had to take my car back to the garage after having the motor replaces because I had no heat or air. Come to find out, they never hooked it...


Sounds like a faulty mode door actuator for the a/c in the dash. There are a series of mode doors that controls air temperature and air flow. They are located in the passenger side of the dash. If the temperature mode door isn't closing all the way then when you could still be getting heated air from the heater core when on A/C. The blowing only out of the defrost is a textbook sign of a bad mode door actuator.

Jun 02, 2011 | 2000 Lincoln LS

1 Answer

Air blows only on windshield even when placed on vents or feet


you may have abad slector door acuator.which is alittle motor bolted on the heater box.It move a door in box to direct air flow to right location.hope this helps.

Sep 27, 2009 | 2000 Dodge Durango

3 Answers

AIR FLOW STUCK IN DEFORST VENT WILL NOT SWITCH TO FLOOR OR AC VEN


I found a broken vacuum hose on top of the intake which runs the controls

May 07, 2009 | 2000 Chevrolet Astro

Not finding what you are looking for?
2000 Jeep Grand Cherokee Logo

Related Topics:

116 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

77169 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22258 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...