[baden]

I've got an 01 Grand Cherokee Ltd and this winter the heater is not blowing more than what I'd call luke warm. Had the heater core replaced two years ago so I can't imagine it's that. 143k miles. Any suggestions?

[RonSmith33]

Check out this web site.... heatertreater.net
This may be your problem. My 02 Limited had this problem and I think it's very common. There are several companies that have an easy fix for this but I used these people because they have a phone number so you can talk to a real person about a solution. Their kit is simple and easy to install.

[SpooledupRacing]

I get the same feel.. all of my vents work if I change where the air comes from the vent moves.. but the air is just not hot..

[baden]

Good call. Went to heater treater and watched the videos to see the repair done and to learn how to check the codes. I'm getting a 56 error code so either the drivers or passenger side blend door has a problem.

I'm wondering if that is why I still get warm air vs. others that say with a blend door problem they get cold air only?

[hrtbrk1]

press the two button things and find out whats wrong...sounds like a blend door problem

[baden]

Anyone here used www.blendorstore.com and their solution? Looks like they have a dual zone option that does not require dash removal and does not require the secondary motor and cutting the glove box like heater treater. Would like some feedback on them though before I spend the extra cash.

[hrtbrk1]

heard it works wonders