Hi there\r\nmy grand cherokee 2001 drivers side

grand cherokee heater blend door repair

Here's a link to a possible solution.

its not a fuse its a bad selector motor or broken blend door,

it sounds to me like your blend doors on your h-vac box are not working i dont mean that all of them are not working but maybe just one i have replaced many of these blend doors on the grand cherokee's. underneth the dash on the passengers side to the left there sould be a blend door motor unbolt it and turn the car on and start playing with the climate controls this sould make the motors shaft turn if so check the shaft that is coming out of the h-vac box that is one of your blend doors if you cand turn it 360 or more then its broken and you must replace it for it to work again and some times that shaft will turn 160 and thats good but there is two blend doors that are connected and while one may the other may not and also to replace the blend doors you must pull the dash out and the h-vac box out if your not a skilled tech i whould take it to a good shop because you must all disconnect your a/c lines.

The dual blend door module is broken at the hinge. There is a revised part available at the dealer. You'll need to remove and open the ac/heater housing to replace it. To remove the housing, you'll need to lower the steering column and remove the instrument panel assembly. It's not an easy job but it can be done in your driveway if you have plenty of time and patience. I hope this helps.

You have the blend doors problem which needs to be fixed. At jeep it is about £1300, by EDM in bicester it is £255 and maintains dual control. I would imagine the recirc dooe is or soon will go as well.

common problem, you have a bad blend door motor, also be careful sometimes the blend door breaks at the end that goes into blend motor if is then blend door has to be replaced also w/motor hope this helps, ive done a lot of these, good luck.

hi
your blend doors are damaged or broken, go to heatertreater.net they have a quick fix blend door repair kit that you can install yourself in around half an hour, this really works as i have fitted a few myself. jeep will quote you around £800 to fix.
hope this helps

You have 2 posibilities.there are 2 motors on the heater box that run the blend doors for each side.That side motor may be bad or worst case the blend door arm that connects to the motor is broken.If it is broken the whole dash has to be removed so the heater box can be taken out to replace the blend doors.Big job,do a heater core while your there if you fix it so you dont have to do it again.

generally this is caused by a "blend door " motor (actually a vacuum control) not working. I don't have a diagram on this but if you watch the motors mounted to the heater box under the dash, and operate the control, you likely will find one not moving (check all positions including a/c)

THOSE VEHICLE HAVE SEPARATE BLEND DOORS THAT CONTROLS HOW MUCH HEAT/COLD YOU WANT. BLEND DOORS ARE FLIMSY AND TEND TO BRAKE AFTER A WHILE. THE ONLY WAY TO FIX IS BY REPLACEING THE BEND DOOR (S).EXPENSIVE REPAIR. WHOLE DASH HAS TO COME OUT. PART IS CHEAP BUT A LOT OF LABOR